Four people were killed and another was seriously injured on Saturday after a bus collided with a sedan in east China's Zhejiang Province, said local authorities.
The accident occurred at around 10 a.m. in the Tashiling tunnel in Rui'an City, administered by Wenzhou City, according to a statement from the public security bureau of Wenzhou.
Four of the five people in the sedan were killed on the spot and another in it was rushed to the hospital, said the statement.
The cause of the accident is under investigation.