IMPHAL, March 29: Three persons, including two jawans, were killed and two others injured in a bomb explosion by militants in Manipur today although the state government extended the existing unilateral ceasefire to insurgent outfits for one more month from April 1, reports PTI. Official sources said two jawans of the 15th Jat regiment were killed on the spot and two others seriously injured when a powerful bomb, planted by militants, went off at Ichum Lairembi area, about 23 km north of here this morning. A few minutes after the explosion, armed militants opened fire from nearby Pheidinga...