Obama, Kazakhstan's Nazarbayev discuss non-proliferation, Ukraine - White House

President Petro Poroshenko of Ukraine addresses attendees during the 70th session of the United Nations General Assembly at the U.N. Headquarters in New York, September 29, 2015. REUTERS/Carlo Allegri

WASHINGTON (Reuters) - U.S. President Barack Obama and Kazakhstan President Nursultan Nazarbayev discussed nuclear non-proliferation and the conflict in Ukraine at a meeting on the sidelines of the United Nations General Assembly on Tuesday, the White House said in a statement.

(Reporting by Roberta Rampton; Editing by Eric Beech)