The attacks appear to be an escalation by Kyiv as it tries to hit Russia's oil revenues, which are critical for funding its war in Ukraine. #Ukraine #Russia #BlackSea #BBCNews

The attacks appear to be an escalation by Kyiv as it tries to hit Russia's oil revenues, which are critical for funding its war in Ukraine. #Ukraine #Russia #BlackSea #BBCNews ♬ original sound - BBC News - BBC News