China's copyright and Internet watchdog has shut down 750 websites for rights infringements, under a campaign launched in June 2014.

440 cases been identified with 66 of them sent already to the courts.

Violators have been fined more than 3.5 million yuan in total.

Duan Yuping, an official from the National Copyright Administration, says the payment system related to materials reprinted online needs to be improved.

"Through investigating the case, the National Copyright Administration hopes to build a principle that online reprinting should abide by the Copyright Law, as well as enhance the cooperation between the old and new media, and finally lead to a win-win situation."

The Copyright Administration says authorities will next focus on copyright cases on music and writings.

The administration has already strengthened supervision over the country's 20 major video websites regarding their obtaining and use of copyrights.