A security man was killed in an encounter after Maoists blew up part of the Hehegarha railway station and tracks in Jharkhand's Latehar district on Thursday on the second day of their two-day Bharat bandh. The gun-battle began at approximately 2 am, after nearly 100 armed Maoists bombed a portion of the railway station, killing security man Indra Dev Singh of the Jharkhand Jaguar Force, said the police.