Russia and Ukraine traded blame on Friday over an attack on a gas metering station that lies in Russia’s Kursk region, just a few hundred meters from their shared border.

Russia and Ukraine accused each other on Friday of blowing up a Russian gas pumping station in a border area where Ukrainian troops have been retreating, amid talks over a proposed U.S.-backed moratorium on attacks on energy infrastructure.

Ukrainian officials say Russian drones have struck the city of Zaporizhzhia, killing three people and wounding 12.