U.S. and EU hail pro-West election outcome in Ukraine, Russia guarded

KIEV (Reuters) - Pro-Western parties will dominate Ukraine's parliament after an election handed President Petro Poroshenko a mandate to end a separatist conflict and to steer the country further away from Russia's orbit towards mainstream Europe.

U.S. President Barack Obama hailed Sunday's election as "an important milestone in Ukraine's democratic development" while top European Union officials said on Monday it represented a "victory of the people of Ukraine and of democracy".