At least six people died and 10 others were hurt as a three-story building located on the Grand Trunk Road in Pakistan's Punjab region collapsed due to a gas cylinder explosion on Sunday, media reports said.

Additional Deputy Commissioner (Revenue) Hassan Tariq told Dawn News the explosion took place at around 9:45am today, following which the rescue teams “immediately responded and initiated rescue efforts”.

Tariq added that all senior doctors and staff were present at the Jhelum District Headquarters Hospital where the injured were being provided treatment while one seriously injured patient was referred to the Holy Family Hospital in Rawalpindi.

Rescue operation was going on when the last report came in.

Pakistan Prime Minister Shehbaz Sharif has expressed grief over the loss of life in the incident.