BEIJING, Jan. 3 (Xinhua) -- The Cyberspace Administration of China (CAC) on Thursday announced start of a six-month's campaign against "harmful information" on the Internet.

The information includes gambling and that which is pornographic, vulgar, violent, horrific, fraudulent, superstitious, abusive, threatening, inflammatory, rumor and sensational, according to a CAC statement.

The CAC will look into websites, mobile apps, online forums, instant message services, live-streaming platforms and others to reduce the harmful information.

"The CAC requires Internet regulators at all levels and Internet companies to fulfill their responsibilities. Anyone who allows illegal behavior to go free will not be tolerated," the statement said.