Suicide bombing at a Shiite mosque on Islamabad's outskirts kills at least 31

People comfort a man, center, mourning over the death of his relative, close to the site of a bomb explosion at a Shiite mosque, in Islamabad, Pakistan.

It was a rare attack in the capital of Pakistan as its Western-allied government struggles to rein in a surge in militant attacks across the country.

(Image credit: Anjum Naveed/AP)