US
Tensions remain high, with Ukraine also staging war games, as leaders on all sides pin hopes on diplomacy
US news site says it deeply regrets error after headline 'inadvertently published'
China expresses 'understanding and support' for Russia's position on security over ties with US, NATO
Spokesperson says Moscow needs time to review the response and would not rush to conclusions
Moscow deploys more forces and fighter jets to Belarus for exercises next month
Minister says one of Moscow's aims is to 'splinter the West'
US president says such an invasion would be met by a 'severe and coordinated response'
Russia says it is still waiting for a written US response to its demands for security guarantees
Moscow says West needs to respond to its concerns about NATO activities in former communist countries
Alliance's foreign ministers term many security demands made by Kremlin 'unacceptable'