A war of words in Ukraine
Smoke billows above an airfield in eastern Ukraine where a military helicopter has come under fire.<br/> <br />The army said Friday that a rocket-propelled grenade destroyed a chopper near the rebel-held city of Slaviansk.<br/> <br />No one died in the incident, the latest event in a series of escalations.<br/> <br />Meanwhile, a war of words unfolds.<br/> <br />Prime Minister Arseny Yatseniuk accuses Russia of wanting to start World War Three.<br/> <br />(SOUNDBITE) (Ukrainian) UKRAINE PRIME MINISTER ARSENY YATSENIUK SAYING:<br/> <br />"And it is clear that Russia's goal is, first, to wreck the election in Ukraine so that Ukraine will not have a legally elected president. Second, to remove the pro-Western and pro-Ukrainian government. And third, to occupy Ukraine militarily as well as politically."<br/> <br />His words come after an explosive device injured seven at a pro-Ukrainian checkpoint near the Black Sea port of Odessa.<br/> <br />Ukrainian forces also killed up to five pro-Russian rebels a day earlier.<br/> <br />Russian
