Gunmen suspected to be bandits invaded a Christ Apostolic Church in Eda Oniyo, headquarters of Ilejemeje Local Government, opening fire on worshippers gathered for a special revival programme.
A pastor identified simply as Aregbe was killed on the spot.
Several others were injured.
An unconfirmed number of congregants are missing.
Witnesses said the attackers stormed the church around 6:45 p.m., shooting into the congregation.
Worshippers scattered into the surrounding bush. Some made it out. Others were hit.
Ilejemeje Local Government Chairman Pius Alaba confirmed the attack.
He said the pastor in charge reported that several worshippers remain unaccounted for, and the exact number of those abducted is still unknown.
“The corpse of the slain pastor has been deposited at the morgue,” Alaba said.
At least six worshippers are declared missing, raising fears they were taken by the gunmen.
Others are nursing gunshot wounds.
Panic has gripped Eda Oniyo.
A community member said residents are living in fear and appealed to government to urgently deploy security personnel to the area.
As of press time, security agencies had yet to issue an official statement on the attack.