Four police officials have been killed after the rebels fighting against Indian rule in disputed Kashmir detonated a bomb in the northwestern town of Sopore, police say.
Police say the massive blast hit Saturday as the officers were patrolling a street in the area.
The town is observing a shutdown on the 25th anniversary of a massacre when government forces killed at least 47 people after a paramilitary soldier died in a rebel attack, reports the Associated Press.
Police say three shuttered shops suffered extensive damage in the blast that was remotely detonated.
No rebel group has immediately claimed responsibility for the attack.
Kashmir is divided between India and Pakistan and both countries claim it in its entirety. Rebels demand that Kashmir should be united either under Pakistani rule or as an independent country.