SARGODHA:- Two labourers crushed to death and two others injured at a stone crushing site here on Tuesday. According to police, the labourers were crushed underneath a crusher filled with heavy stones. Two other labourers sustained injuries in the incident. The injured and dead bodies were shifted to hospital. Crusher plants supply crushed stones for construction. Accidents are not uncommon, given the poor working conditions the labourers often suffer at these sites.–NNI