All-night Ukraine crisis talks 'difficult': diplomatic source

KIEV (Reuters) - Talks on Ukraine's crisis that are being brokered by three European Union ministers are proving difficult and will continue later on Friday after a break of a few hours, a European diplomatic source said. "The negotiations are very difficult and went on all through the night," the source said. "There is a break now. The participants will come back together again before midday." (Reporting by Sabine Siebold, Editing by Timothy Heritage)