Four tourists from Mexico on a family vacation have died in a traffic accident in Thailand.

Police in Phichit province said all 10 people traveling in a van to the northern province of Sukothai on Thursday night were Mexican. Two females died at the scene when the vehicle crashed into a tree and two males died later at a hospital in Phichit, about 315 kilometers (215 miles) north of Bangkok. The six other people in the van were injured.

Thailand, which hosted 29 million foreign visitors last year, has one of the highest traffic fatality rates in the world.