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.<br />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.<br />Authorities said 51 people were on the bus.<br />An official at the scene, Ernesto Flores, the provincial undersecretary for civil defense, had earlier reported 41 deaths and nine injuries.
