The United States has warned Russia that it would be a "grave mistake" to embark on military intervention in Ukraine.
"I don't think there should be any doubt whatsoever that any kind of military intervention that would violate the sovereign territorial integrity of Ukraine would be a huge - a grave mistake," US Secretary of State John Kerry said.
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A manhunt is being undertaken after two men were shot - one fatally - at a residential site on Thursday evening.
Residents of Fort McMurray were restricted to salvaging only their clothes and pets as they were evacuated.
Warm sunshine to end the working week