At least 22 people were killed and 55 others wounded today in a powerful bomb blast at a crowded used clothes market in Kurram tribal agency’s Parachinar in northwestern Pakistan.

It was unclear whether the blast was a suicide attack or a remote-controlled blast. Security forces have cordoned off the area and are investigating the nature of the blast. So far no individual or group has claimed responsibility for the attack.

Earlier, rescue and emergency teams rushed to the blast site and shifted the dead and wounded to a hospital in Parachinar.

Parachinar, the administrative headquarters of Kurram, is one of the most sensitive tribal Agency near Afghan border of Pakistan.