GUANGZHOU: Police and tax departments in Guangdong yesterday pledged to enhance efforts to combat the production of fake invoices after enjoying early success in curbing the activity.

"The fight against fake invoices will be a long and tough task, and police will remain on alert," Xu Wenhai, director of the economic criminal investigation department under the Guangdong provincial bureau of public security, said.

"More joint collaborations with tax departments will be launched and promotional events will be held in the second half of the year," Xu said in Guangzhou yesterday.