At least three seminary children were killed and 11 others hit a mosque in Pakistan’s southern port city of Karachi on Monday, local media reported.

The report said that the bomb exploded inside a mosque located in Frontier More area of Karachi, the capital city of the country’s south Sindh province.

Police said the bomb targeted kids who were reading Quran in a seminary located inside the mosque.

The nature of the blast has not been determined yet.

Report says the injured people include several kids who have been shifted to a nearby hospital, where five of them were in critical condition.

No group has, however, claimed responsibility for the attack.

Police cordoned off the area and started investigations. (Xinhua/NAN)