The death toll from an expressway collision between a bus and a tanker in northwest China has risen to 36, local police said Sunday. According to Xinhua, the accident happened at around 2 a.m. in Yan'an, Shaanxi Province, when a double-decker sleeper bus crashed into a methanol-loaded tanker and caught fire. Only three out of the 39 people on board the bus survived, but they all suffered injuries. The driver of the bus also died, police said. Police are investigating the cause of the accident.