Such attacks have become common in Nigeria’s northwestern, north-central regions, where local herders and farmers clash.

At least 27 worshippers have been killed and several wounded when armed bandits stormed a mosque in northern Nigeria’s Katsina state during morning prayers, a village head and a hospital official said.

The gunmen opened fire inside a mosque as Muslims gathered to pray at around 04:00 GMT in the remote community of Unguwan Mantau in the Malumfashi local government area, residents said.