Islamabad, Feb. 6 -- At least 31 people were killed and 169 injured when a suicide bomber detonated himself at a Shia imambargah during Friday prayers in Pakistan's capital Islamabad, media reports quoted officials as stating.

The blast occurred at the Imambargah Khadijah al-Kubra in the Tarlai area, also known as Shahzad Town. A district administration spokesperson said the explosion took place near the entrance after the attacker entered the premises.

According to eyewitnesse's police and rescue teams rushed to the scene and began evacuation and rescue operations, while security forces sealed off the area.

Scores of wounded were taken to nearby hospitals, with some victims treated in the garden outside the imambargah, witnesses said. ...