A Pakistani police officer says a bombing near a Shiite mosque in the southern port city of Karachi has killed two people and wounded six.

Raja Umar Khitab says the bomb had a timing device and was planted on a motorcycle parked near the main gate of the mosque of the minority Shiite Bohra community in a Karachi business district.

He says it went off minutes before Friday midday prayers were to end, which minimized the casualties as most of the worshippers were still inside the mosque.

No one has claimed responsibility for the attack. Islamic militants have in the past targeted Shiites and other religious minorities.

The Taliban attacked two churches in eastern city of Lahore on Sunday, killing 15 people.