The Burkina Faso authorities claim that on the same day that a church was assaulted, other individuals were shot and killed at a mosque.
In Natiaboani town, the gunmen encircled the mosque during the early morning prayers.
According to a local, "the victims were all Muslims, most of them men," the AFP news agency was informed.
Islamist insurgents presently control more than one-third of Burkina Faso.
Suspected Islamist fighters, the attackers that day also targeted a local militia stationed for self-defense and soldiers.
The local media report (in French) on a massive incursion by hundreds of militants on motorbikes armed with machine guns.
Unconfirmed social media reports indicate that the number of fatalities from the attack on the mosque may be significantly more than what authorities have stated.
Natiaboani, which is located in the unstable eastern part of Burkina Faso, home to several armed factions was where the attack took place.
During Sunday mass in Essakane, northeast of the country, an attack on a Catholic church resulted in the deaths of at least fifteen worshippers that same day. According to a church official, the culprits were alleged Islamist terrorists.
The two incidents have not been officially connected, but the privately held L'Observateur Paalga newspaper in Burkina Faso has questioned whether they were a part of a larger conspiracy.
In Burkina Faso, attacks on religious leaders are not unusual.
Five years after being abducted from the northern village of Djibo, a priest remains missing. Additionally, armed men abducted the village of Djibo's main imam in 2021, and it was discovered that day that the man had died.
According to humanitarian workers, Burkina Faso is one of the most overlooked crises in the world.
Over two million people have been pushed from their homes due to years of widespread insecurity, and according to UN estimates, 25% of children under five have stunted growth as a result of starvation.
Although the military took control two years ago and declared it would defeat the rebels, the bloodshed has persisted.