BEIJING • Parcel deliveries in a southern Chinese county struck by a wave of fatal package bombings were halted, while the suspect believed to be responsible for the bombings was himself killed at the scene, state media reported.

Police confirmed that the suspect in the blasts in Liuzhou was Wei Yinyong, 33, who was believed to have been involved in a dispute with his neighbours, Xinhua said.

More than a dozen package bombs were sent to locations such as shopping malls, hospitals and government buildings in Liuzhou, a city in the province of Guangxi.

The report followed another blast on Thursday morning that struck a residential building near a government office in Liucheng, Guangxi, the Southern Metropolis Daily said.

More than a dozen explosions have killed at least seven and left 51 injured in the area since Wednesday, before a week-long holiday.

Guangxi regional chairman Chen Wu vowed an "all-out" effort to resolve the case during a visit to Liucheng, the Guangxi Daily said. Chinese Premier Li Keqiang delivered instructions to local authorities, and the Ministry of Public Security is assisting, the report said.

The authorities in Liuzhou, located about 550km northwest of Hong Kong, tightened parcel inspections while the state-owned mail company, China Post, halted all local mail deliveries until today.

Police officials in neighbouring Guizhou province also implemented tighter scrutiny over parcel deliveries, following an emergency security meeting on Thursday.

The bombings were not the only violent acts over the national holiday. At least 50 people were killed after a group of knife-wielding men attacked a coal mine in China's remote western region of Xinjiang, Radio Free Asia reported, citing local security officials. The death toll included five police officers.

While the attack occurred on Sept 18, the details were reported only on Thursday.

Xinjiang, home to a large population of Muslim Uighurs, has long been troubled by ethnic violence, blamed by the government on militant separatists. Nine suspects are still at large.

BLOOMBERG, REUTERS