“Preparations for the summit are continuing,” Ryabkov was quoted as saying. “I don’t see any major obstacles.”
He added: “It’s a difficult process, I admit – but that’s precisely what diplomats are for.”
Russia and Ukraine pounded each other with heavy overnight missile attacks as renewed uncertainty surrounded the US-led peace effort.
Ukrainian officials said on Wednesday that Russian attacks had killed six people, including two children, in Kyiv and the nearby region, and forced power outages nationwide.