Six labourers were killed on Saturday morning as the trolley fell at an under-construction building in Karachi's Boat Basin. Police said the labourers were standing in the lift and installing glass sheets when it fell all of a sudden. Six labourers died on the spot. Three bodies were taken to Jinnah Postgraduate Medical Centre and two to Civil Hospital, rescue officials said. Sindh Chief Minister Murad Ali Shah has taken notice of the incident.