Four militants were killed in a factional fight between NSCN-IM and Zekiangrong United Front (ZUF) at Gaddai Hills area in Tamenglong district of Manipur. Officials said today in Imphal that there was a gunfight between the NSCN-IM and ZUF that lasted several hours yesterday in which two NSCN-IM and two ZUF militants were killed. Assam Rifles personnel, have been rushed to the spot. The two militants outfits have been engaged in frequent gunfights resulting in the death of militants of both the outfits in the past few months.