The sound of artillery fire resonates through mostly deserted streets, as the fight for the Donetsk airport intensifies, Friday.<br/> <br />Ukraine is accusing Russian forces of helping separatists step up pressure on government troops manning the airport.<br/> <br />This latest outbreak of violence adds to days of unrest, and the delicate ceasefire is further threatened.<br/> <br />Something Ukraine's UN Ambassador Yuriy Sergeyev is blaming on Russia:<br/> <br />(SOUNDBITE) (English) UKRAINE'S AMBASSADOR TO THE UNITED NATIONS, YURIY SERGEYEV, SAYING:<br/> <br />"The Russian side flatly accused Ukraine armed forces of mass murders and genocide of Russian-speaking population. Such statements are blatant lies of Russian propaganda machine."<br/> <br />The Ukrainian military is not backing down, with new weapons and supplies laid out in Kiev. And Prime Minister Arseny Yatseniuk is taking stock.<br/> <br />...Preparing for the winter months, that may see a surge in violence if a ceasefire is indeed dissolved.
