French president Emmanuel Macron has condemned the "unbearable" images of murdered civilians in the Ukrainian commuter town of Bucha, near Kyiv, and said Russian authorities "must answer for these crimes", reports RFI.
Since Russian soldiers pulled out of Kyiv and the surrounding area, Ukrainian officials say they have recovered 410 civilian bodies.
One hundred and forty of them have been examined, Prosecutor General Iryna Venedyktova said on television on Sunday.
Bucha mayor Anatoly Fedoruk said on Saturday that 280 bodies were found buried in mass graves.
Reporters have confirmed dozens of corpses were left lying on the streets following the Russian withdrawal.
AFP reporters in Bucha counted at least 20 bodies, all in civilian clothing, strewn across a single street.
One man had his hands tied behind his back with a white cloth, and his Ukrainian passport left open beside his body.
"On the streets, hundreds of civilians cowardly murdered," Macron wrote on Twitter on Sunday, in reference to Bucha.