He expressed his condemnation through a statement authored by his Media Aide, Femi Adesina.
He has therefore called on the global community to intervene and rescue the country from turning to a war zone, where mass killings is a usual occurrence.
However, Daily Sun gathered from a source who hails from Umenger that the bandits suspected to be herdsmen numbering over 50 stormed the Umenger village on Tuesday evening, set the entire village on fire and killed about 15 people.
The armed men later surrounded the church and killed all the early callers in the church.
At least 16 people, including two Catholic priests, were killed after gunmen opened fire on a church congregation on Tuesday in the Mbalom area of central Nigeria's Benue state, Reuters reported.
According to Mr Shaapera Nyon, he said the attackers came at about 5:00 a.m. while most people were still enjoying the early morning sleep.
Among the victims were two priests; Rev Fathers Joseph Gor and Felix Tyolaha, two primary school headmasters; Peter and Ape Chia, a secondary school principal; Michael Tor and 14 other worshipers.
Police fired teargas to disperse a rampaging mob that took over a busy intersection and lit massive fires in protest of the latest attack. "We expect arrests to be made because they (attackers) are becoming more brazen", he added.
Our correspondent observed that since Governor Samuel Ortom travelled out of the country, the spate of killings in the state in the last few weeks seemed to be on the increase as hardly a day passes without news about herdsmen killing.
President Muhammadu Buhari in a statement called the violation of a place of worship "vile, evil, and satanic" and an attempt to stoke religious conflict.
Both herdsmen - who are mainly Muslim and from the Fulani ethnic group - and the settled farmers - who are predominantly Christian - have carried out attacks.
The area has always been a hotbed of ethnic, sectarian and religious tensions between indigenous farming communities, who are mainly Christian and the nomadic cattle herders, who are Muslim.
"It is getting worse and it's getting messier", Hassan said, warning "we must quickly address this, before we get into a free-for-all war".