A taxicab exploded in Colombia, killing six people, including two children, authorities said. Defense Minister Juan Carlos Pinzon blamed FARC guerrillas, calling it a \"cowardly attack.\" Pinzon said the militant group detonated explosives attached to the car as it passed a police post Sunday in the Meta department, Columbia Reports said. The explosion occurred as Pinzon met with local security officials in Villavicencio, the capital of Meta.