At least 56 people are dead after a bus plunged off a bridge Monday on the outskirts of Guatemala's capital, Guatemala City Fire Department spokesman Carlos Hernández told CBS News.

At least 51 people are dead after their bus plunged off a bridge Monday on the outskirts of Guatemala’s capital, said Hector Flores, who was helping coordinate the municipal government's response. Firefighting spokesman Edwin Villagran said a multi-vehicle crash sent the bus off the bridge before dawn.

The bus collided with other vehicles on a main bridge in Guatemala’s capital before falling into a ravine early Monday morning.