ISLAMABAD, Jun 10 (APP): President Mamnoon Hussain has expressed profound grief and sorrow over the loss of precious human lives due to collapsing of the roof of an under-construction mosque in Karachi.

The President also expressed condolences to the family members of the victims, a press release issued by the Aiwan-e-Sadr here on Friday said.

He also directed the administration to take proper care of the injured.