Islamabad, Pakistan - At least three people have been killed and 28 wounded after a bomb exploded at a mosque in the western Pakistani city of Quetta. The blast took place at the mosque in the city’s Pashtoonabad neighborhood during Friday prayers, according to Abdul Razzak Cheema, deputy inspector of police.

The area was cordoned off by security forces shortly after the explosion, and a bomb disposal unit was conducting investigations, Cheema said.

Sectarian violence, mostly targeting Pakistan’s minority Shiite Muslims, has left hundreds dead in recent years in Baluchistan. However, the Pashtoonabad neighborhood in Quetta is a Sunni majority area and the mosque was attended by Sunni Muslims.

Video footage from the scene showed debris from the blast strewn within the mosque, with ceiling tiles lying smashed on the floor.

There was no claim of responsibility. Police said they were investigating. Sunni Muslim militants also operate in the province. They usually attack government targets and members of the Shi'a Muslim minority. Attacks on Sunni mosques are rare. Police said they were investigating.

Last week, at least four policemen died when their vehicles were targeted by an explosion as they stood guard outside a mosque during evening prayers.

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