London's landmarks lit up with Belgian national colours in solidarity following Brussels terror attack

The capital joins other cities around the world in paying tribute

London’s major landmarks have been lit up in Belgian national colours in a show of solidarity following the Brussels terror attack.

In London the National Gallery, Tower Bridge, the London Eye, and the fountains at Trafalgar Square were all lit up in black, yellow and red to pay tribute to the city and the victims of the attack.

At least 31 people have been killed following three explosions, responsibility for which was claimed by Isis.

Because the Belgian capital is home to major international institutions such as the European Union and Nato, Brussels has been a prime target for Islamist extremists.

The city is in the middle of observing a three-day period of mourning. Belgium’s king and queen also visited the airport where the first explosions took place on Wednesday evening as well as two hospitals where survivors are being treated.

London’s show of solidarity will continue tonight with a vigil in Trafalgar Square. Co-organised by both City Hall and the Belgian embassy, a 25-metre silk flag will be place on the square’s staircase.

"We must send a clear signal that atrocities like the events in Brussels yesterday will be not be tolerated,” said Jennette Arnold, chairwoman of the London Assembly.

“When London lights up its landmarks, we are condemning terror and mindless acts of violence and standing side by side with Belgians in their tragic hour.”