SHEIKHUPURA, Feb 27: A labourer was killed and three others injured when the chain of a crane broke in a textile mills on Faisalabad Road on Monday. Tariq, Amin, Asim and Boota were working on a crane when its chain broke and fell on the labourers. Boota died on the spot while Tariq, Asim and Amir sustained injuries. Two of them were shifted to a Lahore hospital in critical condition.