KARACHI, Pakistan (AP) — A police official says a bomb blast has killed three seminary students in southern Pakistan.
Javed Odho says the Monday bombing in the port city of Karachi also wounded at least 10 students at a religious school adjacent to a mosque.
Odho says the mosque belongs to the country's majority Muslim Sunni sect and that there is no indication as to why it would be a target.
The official says the explosion went off as students were in class. He says it is not clear whether the bomb was planted inside the seminary or if someone threw a hand grenade from the outside.
No one immediately claimed responsibility for the attack.
Karachi has been a scene of ethnic, political, sectarian and militant violence.