As Ukrainian President Volodymyr Zelenskyy urges Europe to end energy dependence on Russia, more...

President Volodymyr Zelenskyy wants Europe to end its energy dependence on Russia — and stop the flow of cash it funnels to Moscow. In a video message, the Ukrainian leader said the length of this war — and how many Ukrainians are killed — will be decided by how quickly Ukraine's friends supply it with weapons and enforce an oil embargo against Russia.

While U.S. and allied nations' economic sanctions on Russia are painful, they are not severe enough to stop Russia's offensive, he said Friday.

Russian forces have failed to capture Ukraine's capital, Kyiv, plagued by military failures and a Ukrainian resistance much tougher than many expected. But explosions were reported in the capital, which Russia had recently threatened to invade before retreating, and in the western city Lviv on Saturday morning.