Dhaka, Nov. 13 -- At least 37 people were killed when a bus traveling through the mountainous Arequipa region of Peru collided with a pickup truck and plunged about 200 metres (650 feet) into a ravine, officials said.

The bus, carrying around 60 passengers, was traveling from a mining district toward the city of Arequipa around 12:30 a.m. local time (05:30 GMT) on Wednesday when it hit the pickup and veered off the highway, according to public broadcaster TV Peru. Thirty-six passengers died on the spot, while one more later succumbed to injuries at a hospital. About 20 others were injured.

Authorities said the pickup truck driver tested positive for alcohol. Photos from the scene showed the front of the truck badly damaged and the bus l...