Explosion in a highway tunnel in Hunan: 20 dead

An explosion in a highway tunnel under construction in Hunan province has killed 20 people Saturday, said local authorities on Sunday.

The explosion occurred during unloading of a vehicle transporting explosives for the excavation of the tunnel located between the towns of Yanling and Rucheng. Twenty workers were killed and four others were injured, one of whom was hospitalized in critical condition.