GUATEMALA CITY — At least 55 people were killed in Guatemala on Monday when a bus crashed through a guardrail and plunged into a ravine, authorities said, in one of the worst road accidents in Latin America in years.

At least 55 people are dead after their bus plunged into a gorge and landed under a bridge Monday on the outskirts of Guatemala's capital.

At least 54 people were killed after a bus veered off a bridge into a ravine in Guatemala City on Monday, according to the country’s National Institute of Forensic Sciences.