Chinese police shot dead 13 attackers in the restive far-western region of Xinjiang yesterday after they rammed a car into a police station and detonated explosives, Xinhua news agency said, in the latest of a series of attacks to worry Beijing.

China has been toughening its response to violent crime after a spate of attacks around the country, centred on Xinjiang, the traditional home of Muslim Uighurs.

China has blamed previous attacks on Islamist separatists in the region, who they say are looking to establish an independent state there called East Turkestan. It was not immediately clear who was responsible for yesterday’s violence.

“The gangsters drove a truck to ram the building of the public security bureau of Yecheng County in southern Xinjiang and set off explosives. Police shot and killed 13 attackers at the scene,” Xinhua said, adding that three police were slightly wounded.

In 2012, seven attackers were shot dead after killing 13 people in a knife attack in Yecheng, also known by its Uighur name of Kargilik, a remote town on the road leading to China’s mountainous border with Pakistan.

China has been on edge since a suicide bombing last month killed 39 people at a market in Xinjiang’s capital, Urumqi. In March, 29 people were stabbed to death at a train station in the southwestern city of Kunming.

The rise in violence has prompted a crackdown on violent crime. Authorities in Xinjiang have arrested dozens of suspects in recent weeks for spreading extremist propaganda, possessing banned weapons and other crimes.