Two American tourists and their Peruvian driver were killed when the SUV they were riding in went off a highway and into a ravine while on their way to visit some pre-Columbian ruins in Calca, a province in Cuzco region, the official Andina news agency reported.

James Dirks, 46, and Judy Leu Dirks, both from the United States, and Fredy Puma Pescco, a Peruvian citizen, were killed on Tuesday, Andina said, citing police.

Rescue teams are trying to reach a guide who was with the group when the vehicle plunged into the 400-meter (1,311-foot) ravine.

The driver apparently misjudged the road while heading to the Huchuy Qosqo ruins, investigators said. EFE