In the wake of a deadly terrorist attack, Mannekin Pis has become a symbol of strength and defiance against terrorism.

Explosions, at least one likely caused by a suicide bomber, rocked the Brussels airport and subway system Tuesday, prompting a lockdown of the Belgian capital and heightened security across Europe. Here's how the events unfolded.

Social media users from around the world have flocked to support the people of Brussels after explosions rocked the city's airport and subway system Tuesday.