Dhaka, Jan. 31 -- Distraught relatives thronged hospitals in Pakistan's Peshawar on Tuesday to look for their kin a day after a suicide bombing ripped through a crowded mosque in a heavily fortified area of the city, killing 100 people, mostly policemen.

The attack, in the Police Lines district, was the deadliest in a decade to hit this restive, northwestern city near the Afghan border and comes amid a surge in violence against the police. No group has claimed responsibility.

"My son, my child," cried an elderly woman walking alongside an ambulance carrying coffins, as rescue workers stretchered wounded people to a hospital emergency unit.

At least 170 people were wounded in the blast, which demolished the upper storey of the mosque as...