Updated Jan. 18 at 11:02 a.m. ET.
At least 21 people were killed and dozens injured in a car bomb blast at a police academy in Colombia's capital, Bogotá, on Thursday morning, according to officials, who called it a terrorist act.
Columbia's defense minister blamed the attack on a leftist rebel group called the National Liberation Army, or ELN, which has carried out occasional attacks in the country. The bombing has stoked anxiety about a return to the decades when innocent Colombians got caught up in conflicts with rebel groups and drug cartels.