According to information from the Department of Transport of Son La province, the accident occurred at around 4:25 p.m. on February 24, 2025 at Km445+380 - National Highway 37 (Chen Pass area) in Chen village, Muong Khoa commune, Bac Yen district, Son La province.
At this time, the tractor-trailer with license plate 47H - 018.62 towing a trailer with license plate 47R - 005.62 was traveling in the direction of Son La - Bac Yen and lost control and plunged into the abyss.
As a result, the accident caused 2 people on the bus to die on the spot.
The initial victims were identified as Mr. T.D (born in 1968) and Mr. D.V.Tr (born in 1973, both in Dak Lak province).