Armed militants launched an attack on a market in Burkina Faso's Sanmetenga province, leaving 36 civilians dead.
Officials said the terrorists targetted those entering the Alamou market before burning the structure down.
"These repeated attacks on innocent civilians call for real cooperation between the defence and security forces," the government said.
It was not immediately clear who was responsible for the attack.
President Roch Marc Kabore has announced a two-day mourning period.
Trump says text of signed US, Iran deal will be released on Friday
US President Donald Trump said on Monday a deal with Iran has been agreed and the text of the deal will be released sometime after the formal signing in Switzerland on Friday.
Lebanon fighting eases after US-Iran deal but displaced warned not to rush home
Fighting in southern Lebanon eased on Monday after the US-Iran deal to end the wider conflict was announced, but an Israeli drone strike killed one person and authorities warned displaced people not to rush home as Israel said it would keep troops in the south.
Ukrainian man found guilty of setting on fire houses linked to UK PM Starmer
A Ukrainian man was found guilty on Monday of carrying out arson attacks on property connected to British Prime Minister Keir Starmer in May last year on behalf of a mystery figure he knew only as "EL Money".
Britain announces sweeping social media ban for under-16s
British Prime Minister Keir Starmer said on Monday he would ban social media sites for under-16s and impose restrictions on gaming and live-streaming platforms, in a fightback against big tech that goes further than any other country.
US, Iran reach preliminary agreement to end war, signing set for Friday
US and Iranian officials said they had agreed on a framework to end their war, halt the US blockade of Iran and reopen the Strait of Hormuz, a preliminary pact that sent oil prices falling but leaves the fate of Iran's nuclear programme to further negotiations.
