Gunmen on Sunday invaded St Phillip’s Catholic Church in Ozubulu, a town in Anambra State.
According to the News Agency of Nigeria (NAN), an unspecified number of people were killed.
A witness said the gunmen broke into the church around 6am, concealing their identities with masks.
He said after they gained entry, the gunmen identified a particular man whom they shot.
He said the gunmen then “shot at the remaining worshippers numbering over 100”.
It was learnt that some worshippers who were critically injured died on their way to the Nnamdi Azikiwe Teaching Hospital in Nnewi, the state capital.
Willie Obiano, governor of the state, Garba Umar, commissioner of police in Anambra, have visited the scene of the attack.