The Nigeria Labour Congress has condemned the attack on worshippers at St Philip's Catholic Church, Ozubulu, Anambra State.
Police Commissioner Garba Umar told writers that the shooting was the aftereffect of a contention between two Nigerian kin now living in South Africa.
Gunmen killed 11 people and wounded 18 others in a church in southeastern Nigeria on Sunday in an attack arising from a feud between members of the local community, officials said. "It is sacrilegious, but for now, [it] is still premature to disclose the identities".
He said the gunmen later went on rampage and opened fire at the remaining worshipers numbering over 100, noting that scores of people were killed on the spot. Aniagoh said that the government will take care of all the medical bills of the victims, who were reportedly taken to the Nnamdi Azikiwe University Teaching Hospital in Nnewi.
According to a statement from the group's media office signed by its President General, Chief John Nnia Nwodo, Ohanaeze said it is yet to come out of the shock of the mindless and appalling crime.
In the meantime, authorities don't believe there was any involvement by the militant Islamic group Boko Haram, which has a long history of carrying out deadly attacks across Nigeria.
Acting President Yemi Osinbajo said in a statement by his Senior Special Assistant on Media and Publicity, Mr Laolu Akande, on Monday evening that those behind the attack will be made to face the law.
A police articulation messaged to Morning Star News expressed that "unknown gunmen" attacked.