Watch: London's Landmarks Light Up in Solidarity with Brussels

London's National Gallery lights up for Brussels
The National Gallery, one of many London landmarks which have been lit up in support of Belgium following the terrorist attacks in Brussels yesterday, March 23, 2016. Anthony Harvey/Getty Images

London's landmarks lit up this week in a touching tribute to the victims of the Brussels terror attacks on Tuesday.

The exterior of the National Gallery illuminated in the red and yellow colors of the Belgian flag, while the fountains in the courtyard outside also displayed a red glow.

The British capital's iconic Tower Bridge also lit up in red in the aftermath of the senseless tragedy in Brussels that left at least 31 people dead and a further 250 wounded.

The London homage joins a slew of cities around the world to show solidarity with Belgium. See some of the images below.

Paris' Eiffel Tower:

En signe de solidarité avec #Bruxelles, Paris illumine @LaTourEiffel aux couleurs de la Belgique. #NousSommesUnis

— Paris (@Paris) March 22, 2016

New York City's One World Trade Center:

Tonight @OneWTC is lit in black, yellow and red as NY stands in solemn solidarity with the people of Belgium.

— Andrew Cuomo (@NYGovCuomo) March 23, 2016

Dubai's Burj Khalifa:

Burj Khalifa in #Dubai now in colors of Belgium flag. In solidarity with victims of #brusselsattack. @akhbar

— Jenan Moussa (@jenanmoussa) March 22, 2016

Rome's Trevi Fountain:

#Rome in memory of the victims of #BruxellesAttack
Pour les victimes à #Brussels

— Federico Di Leo (@Fe_DiLeo) March 22, 2016

Three of the suspects in Tuesday's attack, which saw two explosions at Zaventem airport and a further blast at a metro station, have been identified. Two of the attackers, Najim Laachraoui and Brahim el-Bakraoui, died in suicide bombings at the airport.

Belgian police are still looking for a fourth suspect.