BEIJING - China has launched a nationwide campaign to crack down on false and obscene online advertising about sex-related products, according to a government statement released on Wednesday.

As the sales of such products have moved online in recent years, complaints from the public have also grown - mostly about obscene online advertisements or fake products, according to the statement.

Since 2010, more than 4,000 such complaints have been received, according to the China Illegal Information Internet Reporting Center.