Three terrorists were killed in an encounter with security forces on Wednesday in Jammu and Kashmir's Pulwama district, police said. A civilian also sustained injuries in the gunfight. Police said that the terrorists belonged to local militant outfit Al-Bard. Security forces launched a cordon and search operation in the Tikken area of Pulwama district in the early hours of the day on receiving information about the presence of terrorists there, a police official said. A gunfight broke out after the terrorists opened fire on the forces.