An arrest warrant has been issued for the fiery cleric Tahir-ul-Qadri, who is leading thousands of supporters in a protest demanding the ouster of the Pakistan government, after police here registered a case against him.

A case was registered against Qadri and some 70 unidentified people at Kohsar police station for attacking police officials at the venue of the protest in Islamabad.

A source privy to the development told PTI that an arrest warrants for Qadri had been issued by a local magistrate. Authorities were awaiting a go-ahead from Interior Minister Rehman Malik to arrest Qadri, the source said.