URUMQI, June 21 -- Thirteen mobsters were killed and three policemen were injured on Saturday morning in an attack on a police station in China's far western Xinjiang region, the local government said.

No civilians were hurt, according to the regional information office.

The gangsters drove a vehicle to ram the building of the public security bureau of Yecheng County in southern Xinjiang and set off explosives.

Police shot dead 13 attackers. Three policemen were slightly injured.