Earlier, the Itar-Tass news agency quoted Putin's spokesman, Dmitry Peskov, as saying that Russian President Vladimir Putin and UN Secretary General Ban Ki-moon will discuss the Ukraine crisis and other issues during a meeting on Tuesday in Shanghai, China. Ban is visiting China. Putin, who is embroiled in a standoff with the West over the future of Ukraine after annexing the Crimea region, is due to begin a visit to China on Tuesday.