At least 224 people have been killed after a magnitude 7.4 earthquake struck western Colombia, with rescue teams continuing to search collapsed buildings for survivors on Tuesday.

The earthquake struck at 7:34 am local time on Monday, with Cali, Pereira and parts of the Choco region among the worst affected areas.

Authorities warned that the death toll could rise as emergency teams reach more affected communities and assess the extent of the destruction.

Cali authorities reported 35 deaths, while officials in the Risaralda region, where Pereira is located, confirmed at least 40 deaths. Nine people were also reported killed in Choco, two in Caldas and one in Antioquia.

At least 700 people were injured in Valle del Cauca alone, according to President Abelardo de la Espriella, who declared a national state of emergency and said the government’s priority was to rescue people trapped under rubble.