A vaccine producer in Northeast China's Jilin province is under investigation for law violations in producing rabies vaccines for human use, China's top drug regulator announced on Sunday.

Changchun Changsheng Bio-tech Co, in Changchun, was found to have serious irregularities, including fabricating production records in the manufacture of rabies vaccines for human use, during an inspection by the State Drug Administration, the administration said in a statement.

The administration conducted an unannounced inspection of the company after being tipped off regarding suspected irregularities, it said. The statement did not mention when the inspection took place.

No products involved in the inspection were on sale, and all the vaccines involved have been removed, it said.

The State administration ordered Jilin Provincial Drug Administration to suspend production of rabies vaccines, it said. The provincial administration has sent an investigation team to the company, it said.

The State Drug Administration will continue to put its priority on drug safety and impose the strictest supervision to ensure public safety in the use of drugs, it said.