Armed men have kidnapped at least 13 people from a church in Nigeria's central Kogi state - the second such attack in as many weeks.

The attackers stormed into Evangelical Church Winning All in the mainly rural farming district of Aaaaz-Kiri during Sunday morning service, opening fire then abducting some of the congregants.

Five of the gunmen were killed, according to Kogi state's information commissioner Kingley Fanwo, but he said others managed to escape despite being wounded.

Officials describe the assailants as "bandits" - a term used locally for criminal gangs who typically kidnap people for ransom.

Only two weeks ago, gunmen raided a church in the nearby town of Ejiba, kidnapping a pastor, his wife and several church members.