Two separatist guerrillas were killed on Friday in an ongoing gunfight between security forces and rebels in north Kashmir's Kupwara district, police said."Security forces surrounded a house in Beigh Mohalla (Rajward Bala) area in Kupwara district today (Friday) morning," a senior police officer told IANS here.When the security forces approached the house where militants were hiding, they came under heavy automatic gunfire."The militant firing was retaliated by the security forces, triggering an encounter in which two militants have been killed so far. Firing exchanges are still going on in the area."