The Police Public Relations Officer (PPRO) in the state, Andrew Aniamaka, confirmed the incident on Tuesday.
He said that one of the deceased drowned, while the other two died during a prayer/deliverance session in the church over the weekend.
“The information actually is that one worshipper drowned and two died in the church; that is the information available to me at the moment,” Aniamaka said.
However, a source had earlier told journalists that the deceased was a 10-year-old boy, identified as Emmanuel Odili.
Others are Beatrice Nwachukwu and Antonio Abba.
The source, who spoke in confidence, said that the late Odili, on Friday accompanied his mother to the church to worship, but fell into a pit inside the church premises and died.
He said that on Saturday, members of the church found his corpse floating after he had been declared missing by his parents.
The source said that the church authority deposited his remains at a morgue before reporting the incident at Eburumede Police Station.
“The authority of the church alleged that the deceased had mental disorder which was denied by the parents. While the matter was being investigated, some members of the church on Saturday came to report that Nwachukwu and Abba had died during deliverance in the church. They (church authority) said that Nwachukwu slumped during the prayer session; they also claimed she had high blood pressure but the husband denied it.”
When contacted, the spokesman of the church Godday Emiko, denied the allegations through a text message.
“Sorry, I missed your call, there is nothing like that,” Emiko said.