QUETTA - Four labourers died after being trapped under debris following a gas explosion in a mine in Quetta early Sunday morning.

According to Levies force personnel, nine colliers were working in the mine, adding that six labourers were rescued earlier. Bodies of three labourers, all of whom hailed from Swat, were taken out by the rescue sources, while another injured labourer, who hailed from Kalat, succumbed to his wounds later.

The incident occurred in Sanjadi area of the province, which is 70 kilometres away from Quetta.