An Army jawan was killed and two others, including an officer, seriously injured in a gunfight with suspected Dima Halam Daogah (Jewel) militants in Assam's North Cachar Hills district, sources said on Thursday.

The army jawan, Sanjay Singh was killed and Lt Colonel Rajesh Shukla and jawan Mohinder Singh were injured when a group of about 12 DHD(J) militants attacked an Army camp at Langting last night, sources said.