Newly appointed Foreign Minister Pavlo Klimkin (R) and Prime Minister Arseny Yatseniuk listen to Ukrainian President Petro Poroshenko (not pictured) during a session of parliament in Kiev December 2, 2014. REUTERS/Valentyn Ogirenko KIEV (Reuters) - Ukrainian Prime Minister Arseny Yatseniuk said on Wednesday an accident had occurred at the Zaporizhye nuclear power plant (NPP) in south-east Ukraine