Karachi police on Sunday claimed to have arrested a member of a gang allegedly involved in running a "dirty campaign" on social media, said Clifton Superintendent of Police (SP) Suhaee Aziz.

“Boat Basin police have arrested a suspect, Arslan Qamar, who runs a ‘dirty night’ (couple swapping) campaign through social media,” the officer said.

The police arrested him following a well-planned strategy and also recovered cash from his possession.

During interrogation, the arrested suspect has reportedly disclosed that he has been running such "fake programmes" on social media and allegedly making huge sums of money.

The police registered a First Information Report (FIR) against the suspect under Section 420/25-D of Telegraph Act, while efforts were underway to arrest his accomplices.

SP Aziz said the arrest was part of the police’s recently launched campaign titled "rescuing youth, saving future".

Under this campaign, the police were trying to save the youths from drugs, sheesha smoking, misuse of social media, gambling, one-wheeling, and bike racing, she said.