EU's Juncker postpones Kiev visit due to kidney stones

European Commission President Jean-Claude Juncker holds a news conference following a European Union leaders summit in Brussels, March 20, 2015. REUTERS/Eric Vidal

BRUSSELS (Reuters) - European Commission President Jean-Claude Juncker has postponed plans to visit Kiev on Monday because he needs to receive treatment for kidney stones.

Juncker was due to have travelled to Ukraine with EU foreign policy chief Federica Mogherini on what would have been his first trip to a country outside the 28-member European Union since becoming president in November.