Members of Rapid Action Battalion (Rab) today claimed to have detained one person in Dhaka for allegedly spreading anti-state rumours on social media.

Detainee KM Harun Or Rashid is the admin of Zia Cyber Force, a Facebook page, said Lt Commander Ashekur Rahman, a company commander of Rab-3. 

A team of Rab-3 detained Rashid from Gulistan area in the capital this morning, he said.

Filing of a case against the detainee is underway, the Rab official said.