A series of explosions were reported in the Colombian city of Cali on Tuesday morning. The city’s mayor, Alejandro Eder, said authorities were “responding to two explosive devices in our city: one at the Meléndez police station and another at the Manuela Beltrán CAI.”

At least four people were killed in Colombia as rebel groups detonated bombs near police stations in the city of Cali and the neighboring Cauca province, according to Colombian authorities.