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.
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At least 28 people, including three children, were injured when a Russian guided bomb hit on Sunday a high-rise building in Kharkiv in northeastern Ukraine, local officials said.
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At least three people were killed and 49 others wounded in a collision between two passenger trains in Zagazig city northeast of Cairo, Egypt's health ministry said on Saturday.
Storm Boris wreaks havoc across eastern and central Europe
At least four people died and thousands of homes were damaged by flooding in eastern Romania on Saturday, officials said, as surging river levels put authorities on alert in much of central and eastern Europe following days of torrential rain.
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