At least 10 people were killed and 30 wounded when a bomb ripped through a crowded Sunday bazaar in a mainly Shiite area of Pakistan's northwestern tribal region, officials said.

The explosion occurred at the Eidgah market in Parachinar, the capital of Kurram tribal district.

"At least 10 have died and more than 30 were injured," said a senior police official who requested anonymity.

Amjad Ali Khan, the political administrator of the Kurram district, confirmed the incident and the toll.