Four labourers were killed when the roof of a dilapidated building caved in on Sagar Road here on Sunday afternoon.
According to police, when the century-old 'Mitranwali Building' was being demolished, the roof of the building caved in.
As a result, Taj Din (60), his son Faisal Hayat (16), Nadir Ali (55) and Muhammad Ashraf (22) buried under the debris.