Separatist guerrillas on Thursday hurled a grenade at a paramilitary bunker here, damaging some vehicles on the road."Militants lobbed a grenade at a CRPF bunker in Sekidafar Chowk here this morning," a police officer told IANS. The grenade exploded on the road and damaged three private vehicles, the officer added."No reports of any injury to civilians or Central Reserve Police Force (CRPF) troopers have been received in this incident so far," the officer said.