One policeman and two militants were killed in a gunfight that lasted over 15 hours in Jammu and Kashmir, police said on Sunday.Six other security personnel including an army major were injured during the gunfight that started on Saturday evening in Tral town.A house which was used up by the holed-up militants as a fortified bunker was demolished byt eh forces using improvised explosive devices (IEDs), the police said.Syed Javid Mujtaba Gillani, Kashmir Inspector General of Police (IGP) has refuted rumours that a curfew was imposed in Tral.After the fierce gunfight, protesters clashed with the security personnel.