Colombian officials said four people died and more than 300 were injured in Sunday's collapse of a grandstand at a bullfight in the city of El Espinal.
President Ivan Duque said he would order an investigation and expressed solidarity with the families of the victims.
The collapse happened during a traditional event in which members of the public enter the ring to engage the bulls.
Several officials, including president-elect Gustavo Petro, called for such events to be banned.
Some information for this report came from The Associated Press, Agence France-Presse and Reuters.