CHANDIGARH: Five migrant labourers were killed and several others injured in a blast at a firecracker manufacturing and packaging unit near a village in Punjab’s Sri Muktsar Sahib district on Friday, police said.The explosion took place at a two-storey factory on Singhawali-Kotli Road, according to Lambi’s deputy superintendent of police, Jaspal Singh. The cause of the blast is currently under investigation.
