Eleven persons, including nine policemen, were injured in a powerful hand grenade explosion in the heart of summer capital Srinagar on Wednesday afternoon.
Police said separatist guerrillas attacked a joint patrol of police and Indian paramilitary with a grenade in Budshah Chowk near the city centre late on Wednesday afternoon.
"Nine local policemen, one paramilitary central reserve police force soldier and two civilian passers-by were injured in the explosion. All the injured were immediately taken to SMHS hospital," a senior police officer told.
He said Budshah Chowk area had been surrounded by security forces and searches mounted.
The explosion led to the disruption of traffic in Budshah Chowk where shops were already shut following the Jammu and Kashmir Liberation Front protests during the day.
Earlier, terrorists shot and killed a police constable and critically injured a police assistant sub-inspector in two incidents in Srinagar.
No group has yet claimed responsibility for Wednesday's attacks.