Officials sources said the policemen were part of a patrol party that was on routine security duty. The unit came under attack at main Chowk in Sopore town, they said.
Two policemen and two civilians were killed on the spot. The injured including three policemen have been shifted to hospital.
“Two policemen and two civilians were killed in the attack. Three other policemen are injured,” said Vijay Kumar, Inspector General of police.
Mr Kumar said he has reached the attack site and an operation has been launched to track down the attackers.