An Assam Rifles jawan was killed while another was hurt in an ambush by suspected militants in Changlang district of Arunachal Pradesh on Sunday, officials said. Police officials in Itanagar said that armed militants attacked the 19 Battalion of Assam Rifles troopers near Hetlong village when the paramilitary personnel were on their way to collect drinking water by a water tanker. Police suspect that around 30 terrorists belonging to the Paresh Baruah faction of ULFA-Independent and the Yung Aung faction of the NSCN-K are behind in the ambush.