Twenty people have been confirmed killed and several others wounded after a number of assailants attacked a restaurant in Burkina Faso around 9 p.m. on Sunday.

The attack took place in Ouagadougou, the capital of the West African nation.

It’s not known how many attackers were involved.

It has been reported that attackers barricaded themselves in the Istanbul restaurant on Avenue Kwame Nkrumah in the center of the city.

Burkina Faso government spokesman Remis Dandjinou said the victims were from a number of countries.

Efforts are underway to identify the bodies so the authorities can inform their families.

A security perimeter was established by the Defense and Security forces and all roads leading up to the Ouagadougou International Airport were closed just minutes after the incidents took place.

The Prosecutor’s Office has opened an investigation into the incident.