Officials say a motorcycle bomb has exploded in southern Afghanistan, killing an Afghan soldier and a civilian. Local police chief Ghulam Ali says Wednesday's blast near a market in Helmand province's heavily contested Sangin district also left 15 people wounded, AP reported. Helmand government spokesman Omar Zwak says the explosives in a parked motorcycle were remotely detonated as an army and police patrol passed by. Ali said three soldiers, one local police officer and 11 civilians were among the wounded.