India, Feb. 6 -- At least 31 people have been killed and 169 injured following a blast outside a religious centre in Pakistan's capital Islamabad on Friday.

The explosion, believed to be a suicide attack, took place at Tarlai Imambargah in the Shehzad Town area of Islamabad, the Dawn reported. The blast ripped through the religious centre of the minority Shia community during the Friday prayers in the Pakistani capital.

A security official told AFP that suicide attacker is suspected to be behind the blast at the Shia centre. However, there is no official confirmation on the motive of the incident.

"The attacker was stopped at the gate and detonated himself," the official told AFP on condition of anonymity.

Meanwhile, police and rescue...