Thirteen people including a Central Reserve Police Force constable were injured, four seriously, in a grenade attack by militants on an Amarnath protest rally in Bhaderwah in Doda district on Wednesday following which curfew was clamped in the town.

Unidentified militants hurled a grenade on a procession of Bharatiya Janata Party activists and members of a temple committee who were returning to the Laxmi Narain mandir in the town, officials said.

They said the rallyists, protesting the Jammu and Kashmir [Images] government's decision to revoke the order transferring forest land to the Amarnath shrine board, earlier clashed with those opposing the land transfer.