By Our Staff ReporterLAHORE: Four workers suffered multiple injuries when the roof of an underconstruction shop caved in in Sattukatla on Wednesday.

Police said the incident could have happened due to the use of substandard con-struction material.

Rescue 1122 officials rushed to the site and shif ted the injured workers to nearby hospitals where the condition of one of them was said to be serious.

District government officials later sealed the market to further investigate, police added.