Tinsukia (Assam), Nov 19 (ANI): Three Army jawans were killed in an IED blast during the ongoing encounter with suspected United Liberation Front of Assam (ULFA) terrorists in Assam's Tinsukia area. Atleast four others have injured in the encounter underway. The army has cordoned off the jungle in Tinsukia's Pengri and launched an encounter at 5.30 am. The injured jawans have been taken to a hospital. More details are awaited.