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For the second time in four months, Brussels is invovled in a terrorist attack in Europe .
A wave of bombings has killed at least 30 people across the city – just four days after it celebrated the arrest of the most-wanted man in Europe, Salah Abdeslam .
Abdeslam is alleged to have taken part in November's Isis-inspired terror attacks in Paris which killed 130 people .
It is believed there could be a connection between his arrest and the attacks in Brussels, which Isis has claimed responsibility for .
In pictures: Terror attacks at Brussels airport Show all 30 1 /30In pictures: Terror attacks at Brussels airport In pictures: Terror attacks at Brussels airport A man carries an injured person in Brussels Airport, after explosions ripped through the departure hall
In pictures: Terror attacks at Brussels airport Travellers get to their feet in a smoke filled terminal at Brussels Airport after explosions
In pictures: Terror attacks at Brussels airport A man is wounded in Brussels Airport in Brussels
In pictures: Terror attacks at Brussels airport A man speaks on a mobile phone in Brussels Airport, after the explosions ripped through the departure hall
In pictures: Terror attacks at Brussels airport Belgian police officers detain a man at the Gare du Midi train station in Brussels
In pictures: Terror attacks at Brussels airport A police officer stands guard as people are evacuated from Brussels airport, after explosions rocked the facility in Brussels
In pictures: Terror attacks at Brussels airport People stand near Brussels airport after being evacuated following explosions that rocked the facility in Brussels
In pictures: Terror attacks at Brussels airport Crew and passengers are evacuated from Zaventem Bruxelles International Airport after an attack in Brussels
In pictures: Terror attacks at Brussels airport Passengers gather near Brussels airport in Zaventem, following its evacuation after blasts rocked the main terminal of Brussels airport
In pictures: Terror attacks at Brussels airport Two women wounded in Brussels Airport in Brussels
In pictures: Terror attacks at Brussels airport Passengers and airport staff are evacuated from the terminal building after explosions at Brussels Airport in Zaventem near Brussels
In pictures: Terror attacks at Brussels airport Passengers and airport staff are evacuated from the terminal building after explosions at Brussels Airport in Zaventem near Brussels
In pictures: Terror attacks at Brussels airport Broken windows seen at the scene of explosions at Zaventem airport near Brussels
In pictures: Terror attacks at Brussels airport People leave the scene of explosions at Zaventem airport near Brussels
In pictures: Terror attacks at Brussels airport People are evacuated from the scene after two explosions were heard at Brussels Airport
In pictures: Terror attacks at Brussels airport People wait outside of the Brussels Airport after evacuation
In pictures: Terror attacks at Brussels airport People leave the airport area after explosions at Brussels Airport in Zaventem
In pictures: Terror attacks at Brussels airport Passengers comfort each other as they are evacuated from the terminal building after explosions at Brussels Airport in Zaventem
In pictures: Terror attacks at Brussels airport People react as they walk away from Brussels airport after explosions rocked the facility in Brussels
In pictures: Terror attacks at Brussels airport Emergency services attend the scene of explosions at Zaventem airport near Brussels
Reuters
In pictures: Terror attacks at Brussels airport Injured people at the scene at Brussels Airport after two explosions were heard
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In pictures: Terror attacks at Brussels airport The aftermath of the explosions at Brussels airport
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In pictures: Terror attacks at Brussels airport People wait outside of the Zaventem airport after two explosions were heard
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In pictures: Terror attacks at Brussels airport Emergency services at the scene of explosions at Brussels Airport
In pictures: Terror attacks at Brussels airport A view of the scene after the explosions at Brussels airport
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In pictures: Terror attacks at Brussels airport Emergency services at the scene of explosions at Zaventem airport near Brussels
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In pictures: Terror attacks at Brussels airport The aftermath of the explosions at Brussels airport
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In pictures: Terror attacks at Brussels airport The view of the Brussels airport after the explosion
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In pictures: Terror attacks at Brussels airport Smoke is seen at Brussels airport in Brussels
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In pictures: Terror attacks at Brussels airport A photo shows cars on a blocked highway near Zaventem, Brussels National airport, after two explosions rocked the main hall of Brussels Airport
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Raffaello Pantucci, an international security expert for the Royal United Services Institute said: "When Abdeslam gets arrested, you will have the network around him all starting to panic.
"If you have problems building up, or people thinking about doing stuff, they might accelerate any planned attacks.
"You are concerned about what might get exposed and the last thing you want to do is get captured.”
Abdeslam was captured in the suburb he grew up in - Molenbeek; a district now considered being a “hotbed of jihadism”. It is believed that he hid in plain sight for five months managing to evade the world’s police.
Paris attackers Brahim Abdeslam and Abdelhamid Abaaoud also had links to the district.
In the aftermath of November’s attacks, The Independent spoke to Malika Sassi, a friend of the Abdeslam family, about how these young men became radicalised .
She was shocked by events and believed Molenbeek was not responsible for their radicalisation.
“His mother told me yesterday how lovely he [Salah] was. He didn’t even have a violent personality at home. A lovely, lovely boy, who plays with his mother and kisses her every day.
“Her children lived a double life – a life they were indoctrinated into.”
In pictures: Terror attacks at Brussels metro station Show all 30 1 /30In pictures: Terror attacks at Brussels metro station In pictures: Terror attacks at Brussels metro station A private security guard helps a wounded women outside the Maalbeek metro station in Brussels
In pictures: Terror attacks at Brussels metro station
In pictures: Terror attacks at Brussels metro station Wounded people receive assistance by rescuers outside the Maalbeek metro station in Brussels
In pictures: Terror attacks at Brussels metro station Rescue workers treat victims outside the Maelbeek underground station
In pictures: Terror attacks at Brussels metro station Passengers waiting to be evacuated from the train between Arts-Lois and Maelbeek
In pictures: Terror attacks at Brussels metro station
In pictures: Terror attacks at Brussels metro station
In pictures: Terror attacks at Brussels metro station
In pictures: Terror attacks at Brussels metro station Emergency services and police work around a metro station after an explosion in Brussels
In pictures: Terror attacks at Brussels metro station
In pictures: Terror attacks at Brussels metro station Rescue teams evacuate wounded people outside the Maalbeek metro station in Brussels
In pictures: Terror attacks at Brussels metro station A woman is evacuated in an ambulance by emergency services after a explosion in a main metro station in Brussels
In pictures: Terror attacks at Brussels metro station A Belgian soldier stands guard outside the Maalbeek metro station in Brussels after a blast at this station located near the EU institutions
In pictures: Terror attacks at Brussels metro station Belgian police officers stand outside the Maalbeek metro station in Brussels
In pictures: Terror attacks at Brussels metro station Belgian policemen and a soldier carrying an injured person after an explosion at the Maelbeek Metro station in Brussels
In pictures: Terror attacks at Brussels metro station A view of the train after the explosion in Maelbeek station in Brussels
In pictures: Terror attacks at Brussels metro station People receive treatment as emergency services attend the scene after an explosion in a main metro station in Brussels
In pictures: Terror attacks at Brussels metro station Maelbeek Metro station after an explosion on a train in Brussels
In pictures: Terror attacks at Brussels metro station Passengers walk on underground metro tracks to be evacuated after an explosion at Maelbeek train station in Brussels
In pictures: Terror attacks at Brussels metro station A victim receives first aid by rescuers, near Maalbeek metro station in Brussels
In pictures: Terror attacks at Brussels metro station Firefighters arrive at the scene near Maalbeek metro station
In pictures: Terror attacks at Brussels metro station Emergency workers arrive at a security perimeter set near Maalbeek metro station in Brussels
In pictures: Terror attacks at Brussels metro station Emergency rescue workers stretcher an unidentified person at the site of an explosion at a metro station in Brussels
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In pictures: Terror attacks at Brussels metro station Police seal off the area at the scene of a blast outside a metro station in Brussels
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In pictures: Terror attacks at Brussels metro station Emergency personnel are seen at the scene of a blast outside a metro station in Brussels
In pictures: Terror attacks at Brussels metro station Emergency personnel are seen at the scene of a blast outside a metro station in Brussels
Reuters
In pictures: Terror attacks at Brussels metro station Belgian police and emergency staff arriving in the Wetstraat - Rue de la Loi, which has been evacuated after an explosion at the Maelbeek metro station in Brussels
In pictures: Terror attacks at Brussels metro station Smoke rising from the Maalbeek underground, in Brussels, following a blast at the station close to the capital's European quarter
Getty Images
In pictures: Terror attacks at Brussels metro station People are evacuated from the Schuman station in Brussels
In pictures: Terror attacks at Brussels metro station The scene outside the Maalbeek underground in Brussels after the explosion
However, jihadists operating in the area have been linked to at least four terrorist attacks in the last two years.
High unemployment and a lack of identity are being blamed for this rise in extremism.
Molenbeek will now face further scrutiny following the suicide bombing at Maelbeek metro station, located just two miles away.
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