In Pictures: The world responds to Brussels bombings

RTSBS6P — People display a solidarity banner in Brussels following bomb attacks in Brussels, Belgium, March 22, 2016. Banner reads "I am Brussels" in French and in Flemish languages. Reuters/Charles Platiau

Following the trio of explosions that shook Brussels on Tuesday, killing at least 31 people in the city, thousands of people around the world have responded with an outpouring of support and compassion for Belgium.

From Belgium flags being projected on iconic landmarks such as the Eifel Tower in Paris and the Trevi Fountain in Rome, to an Adele tribute, these are some of the ways the world showed its solidarity following the Brussels terror attacks:

RTSBSOY — The Eiffel Tower is seen with the black, yellow and red colours of the Belgian flag in tribute to the victims of today's Brussels bomb attacks, in Paris, France, March 22, 2016. Reuters/Phillippe Wojazer

RTSBR29-2 — The black, yellow, and red colours of the Belgian flag are projected on the Trevi fountain in Rome, Italy, in tribute to the victims of today's Brussels bomb attacks March 22, 2016. Reuters/Stefano Rellandini

RTSBQUO — People stand in front of the Brandenburg gate, which is illuminated in black, yellow and red in the colours of the Belgian flag in tribute to victims of Tuesday's attacks in Brussels, in Berlin, Germany, March 22, 2016. Reuters/Fabrizio Bensch

RTSBSOL — The lights of the Empire State Building are darkened in honor of the victims of the Belgium attacks in Brussels, at the Manhattan borough in New York, March 22, 2016. Reuters/Stephanie Keith

RTSBSO3 — People gather at a makeshift memorial for the victims of the Belgium attacks in Brussels, at Union Square in the Manhattan borough in New York, March 22, 2016. Reuters/Stephanie Keith

Flags have been flown at half mast on buildings such as the Downing Centre in London and the European Commission Headquarters.

RTSBPFU — The flag of Belgium flies at half mast alongside the Union Flag on the roof of 10 Downing Street after the Brussels attacks, in London, March 22, 2016. Reuters/Eddie Keogh

RTSBP75 — European flags fly at half-mast in front of the European Commission headquarters in tribute to victims from the morning explosions in Brussels, Belgium, March 22, 2016. Reuters/Vincent Kessler

Global leaders, celebrities, presidential candidates and others have taken to social media to show their condolences through hashtags including #prayfortheworld, #prayforbrussels and #JeSuisBruxelles.

my heart goes out to all those in Brussels. praying for you. praying for the world. pic.twitter.com/cUgD67ssw7
— Kendall Jenner (@KendallJenner) March 22, 2016