Relatives gather around one of the victims of the attack by gunmen during a Sunday mass service, as she receives treatment at the Federal Medical Centre in Owo, Ondo, Nigeria, June 6, 2022. REUTERS/Temilade Adelaja TPX IMAGES OF THE DAY 

A view of St. Francis Catholic Church where worshippers were attacked by gunmen during Sunday mass service, is pictured in Owo, Ondo, Nigeria June 6, 2022. REUTERS/Temilade Adelaja TPX IMAGES OF THE DAY 

Nigerian military officers stand guard near St. Francis Catholic Church, following an attack by gunmen on worshippers during Sunday mass service, in Owo, Ondo, Nigeria June 6, 2022. REUTERS/Temilade Adelaja 

A woman reacts in front of St. Francis Catholic Church, following the attack by gunmen on worshippers during a Sunday mass service, in Owo, Ondo, Nigeria June 6, 2022. REUTERS/Temilade Adelaja 

A man reacts in front of St. Francis Catholic Church, following the attack by gunmen on worshippers during a Sunday mass service, in Owo, Ondo, Nigeria June 6, 2022. REUTERS/Temilade Adelaja 

All Progressives Congress National Leader and Presidential aspirant Bola Tinubu speaks to the press during his visit to St. Francis Catholic Church, following an attack by gunmen on worshippers during a Sunday mass service, in Owo, Ondo, Nigeria June 6, 2022. REUTERS/Temilade Adelaja 

Broken furniture is seen on the ground, following an attack by gunmen on worshippers during a Sunday service mass at St. Francis Catholic Church, in Owo, Ondo, Nigeria June 6, 2022. REUTERS/Temilade Adelaja 

Broken pieces of furniture are seen on the ground, following an attack by gunmen on worshippers during a Sunday service mass at St. Francis Catholic Church, in Owo, Ondo, Nigeria June 6, 2022. REUTERS/Temilade Adelaja 

A view of St. Francis Catholic Church where worshippers were attacked by gunmen during Sunday mass service, is pictured in Owo, Ondo, Nigeria June 6, 2022. REUTERS/Temilade Adelaja 

A policeman stands next to blood stains and littered items, following an attack by gunmen on worshippers during a Sunday service mass at St. Francis Catholic Church in Owo, Ondo, Nigeria, June 6, 2022. REUTERS/Temilade Adelaja 

A police crime scene tape is seen in front of St. Francis Catholic Church where gunmen attacked worshippers during a Sunday mass service in Owo, Ondo, Nigeria, June 6, 2022. REUTERS/Temilade Adelaja 

A police officer ties a crime scene tape following an attack on worshippers by gunmen at St. Francis Catholic Church in Owo, Ondo, Nigeria, June 6, 2022. REUTERS/Temilade Adelaja 

Nigerian Vice President Yemi Osinbajo visits St. Francis Catholic Church where worshippers were attacked by gunmen during Sunday mass service, in Owo, Ondo, Nigeria, June 6, 2022. REUTERS/Temilade Adelaja 

A view of St. Francis Catholic Church where worshippers were attacked by gunmen during Sunday mass service, is pictured in Owo, Ondo, Nigeria, June 6, 2022. REUTERS/Temilade Adelaja 

A bible is seen on a pulpit in St. Francis Catholic Church where worshippers were attacked by gunmen during Sunday mass service, is pictured in Owo, Ondo, Nigeria, June 6, 2022. REUTERS/Temilade Adelaja 

A view of St. Francis Catholic Church where worshippers were attacked by gunmen during Sunday mass service, is pictured in Owo, Ondo, Nigeria, June 6, 2022. REUTERS/Temilade Adelaja 

A nurse attends one of the victims of the attack by gunmen during a Sunday mass service, at the Federal Medical Centre in Owo, Ondo, Nigeria, June 6, 2022. REUTERS/Temilade Adelaja 

Victims of the attack by gunmen during a Sunday mass service, receive treatment at the Federal Medical Centre in Owo, Ondo, Nigeria, June 6, 2022. REUTERS/Temilade Adelaja 

Relatives of worshippers who were attacked by gunmen during a Sunday mass service gather at the Federal Medical Centre in Owo, Ondo, Nigeria, June 6, 2022. REUTERS/Temilade Adelaja 

Adetunji Henry, 15, one of the victims of the attack by gunmen during a Sunday mass service, receives treatment at the Federal Medical Centre in Owo, Ondo, Nigeria, June 6, 2022. REUTERS/Temilade Adelaja