Ukraine's Liberate Mariupol City Hall

The Ukraine government says it has regained control of the city hall in the Eastern Port city of Mariupol from Pro Russian separatists

There were no reports of serious injuries during the overnight operation in the city , where three Pro Russian protesters were recently shot dead , but local media quote the self proclaimed Donetsk People's Republic as saying it still controls city hall

U.S. President Barack Obama has accused Russia of flouting a deal on Ukraine

Pro Russian separatists have taken over administrative buildings in at least a dozen towns in Eastern Ukraine in a bid to seek closer ties to Moscow

Mr. Obama told a news confrence in Japan , that Moscow had failed to halt actions by militants in the region and warned that the U.S. had further sanctions against Russia lined up

A contingent of U.S. troops has begun landing in Poland for military exercises amid concerns among Nato's Eastern members about Russian intentions

Moscow has said it will respond to any attack on it's interests in Ukraine , unrest began in Ukraine last November over whether the countryy should look towards Moscow or the West

Ukrainian Interior Minister Arsen Avakov announced on Thursday that the city hall in Mariupol , a port on the seaof Azov , had been liberated overnight without any casualties

"Civic activists" played a major part in the operation , he said , however , local news website 0629 reported that the self proclaimed People's Republic of Donetsk was still claiming control over the mayor's hall after a struggle with attackers

Mr. Avakov also reported that Ukrainian troops in Arteminvsk had fended off an attempt by dozens of Pro Russian militants to seize weapons from a military unit , one soldier was wounded he said

Unverified footage of military helicopters said to be flying over Artemivsk was posted by a blogger on youtube