Freed Ukraine opposition leader Yulia Tymoshenko told anti-government protesters in an emotional speech, "You have no right to leave the Maidan [Independence Square] ... Don't stop yet."
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The decision was met with outrage and anger by UK cities which were on the shortlist for the prestigious award.
Mr Lewis is one of a number of Labour and Tory MPs under investigation by party officials over allegations of inappropriate conduct.
A jury has failed to reach a verdict in Emile Cilliers' trial on charges of attempting to murder his wife by tampering with her parachute.