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The Belgian Red Cross has put out an appeal for A and O negative blood donations in Brussels following a major attack on an airport and a metro station which has killed at least 30 people.
In a statement on its website , the charity has sent out an appeal specifically targeted at those two blood types.
A spokesman for the charity told Belgian broadcaster RTBF : "First, we are only asking for O negative, A negative donors".
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
AP
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
Reuters
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
He confirmed three ambulances filled with blood bags were en route to Saint-Pierre hospital where the victims are being treated.
At least 55 people are believed to have been injured - at least 10 critically - in three explosions which struck the city around 7am (8am GMT).
Belgian journalist Sandrine Beigas tweeted there was a large security presence outside the hospital.
Video shows people fleeing from the airport terminal after an explosion near the American Airlines check-in desk at Zaventern aiport.
Men were reportedly heard "shouting in Arabic" and some witnesses say there were the sounds of gunfire before two explosions hit the terminal.
Minutes later, another attack hit the Mallbeek metro station in the city.
Additional reporting by agencies
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