He's the most senior Western politician to visit Ukraine since the uprising.<br/> <br />Speaking to its new pro-Western leaders, U.S. Vice President Joe Biden pledged to help Ukraine through the crisis, including an aid package of 50 million dollars.<br/> <br />SOUNDBITE (English) U.S. VICE PRESIDENT JOE BIDEN SAYING:<br/> <br />"We can help in stabilizing and strengthening Ukraine's economy by helping you withstand the unfair economic pressure being thrust upon you. We stand ready to do that and I say the American people stand ready."<br/> <br />Pro-Moscow gunmen are showing no signs of surrendering government buildings seized in eastern Ukraine.<br/> <br />At least three people were killed in a gunfight over the weekend near a city controlled by pro-Russian separatists.<br/> <br />Washington says it will decide over the coming days on additional sanctions.<br/> <br />But Russia says it will minimize the impact of any sanctions imposed.<br/> <br />Prime Minister Dmitry Medvedev.<br/> <br />SOUNDBITE (Russian) RUSSIAN PRIME MINIS
