At least four labourers died and another was critically injured in a blast inside a coalmine here on Wednesday, Levies sources said. According to details, accumulation of poisonous gas in Quetta’s Chamalang coalmine led to the explosion. Four labourers died on the spot, while another was critically wounded. The bodies and the injured were shifted to a hospital where condition of the wounded miner was stated to be critical. Published in Daily Times, January 3rd 2019