Smoke could be seen coming out of the Indian Air Force (IAF) air base near here on Sunday evening as the gunfight between security forces and terrorists moved to an end.Police sources said two more terrorists holed up inside one portion of the frontline air base had been killed after a prolonged gun battle.With this, the security forces have eliminated six terrorists, the sources said."The smoke can be seen coming from a building which was blown up by security forces to eliminate the last terrorist," a police officer said.