A bus carrying Argentine frontier police plunged off a bridge in rural northern Argentina on Monday, killing 43 people on board, a spokeswoman for the provincial governor's office told CNN.
The bus, part of a three-bus convoy, came to rest in the Balboa River near the northern Argentina city of Rosario de la Frontera, roughly 1,160 kilometers northwest of Buenos Aires.
Authorities said 51 people were on the bus.
An official at the scene, Ernesto Flores, the provincial undersecretary for civil defense, had earlier reported 41 deaths and nine injuries.