Ukrainian security forces have regained control of Mariupol, a port city in the Donetsk region that has changed hands several times.
Ukrainian Forces Regain Control of Mariupol

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A man shows a piece of used ammunition at the site of fighting. Ukrainian government forces reclaimed Mariupol from pro-Russian separatists in heavy fighting, Maruipol, June 13, 2014.

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A policeman uses a mobile phone near an anti-tank mine at the site of fighting in the eastern Ukrainian port city of Mariupol, June 13, 2014.

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Ukrainian troops riding on the back of a truck gesture to local residents gathered near the site of fighting, Mariupol, June 13, 2014.

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Ukrainian troops ride on the back of a truck near the site of fighting, Mariupol, June 13, 2014.

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Local residents observe and photograph destroyed vehicles, Mariupol, June 13, 2014.

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Residents look at a destroyed armored personnel carrier of the DNR (Donetsk People's Reublic), Mariupol, June 13, 2014.

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A home-made explosive is seen on top of a damaged automobile at the site of fighting in the eastern Ukrainian port city of Mariupol, June 13, 2014.

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Soldiers of the Ukrainian Army who were injured while fighting against separatists in Eastern Ukraine, lie on hospital beds in a ward at the Central Clinical Hospital of the Ministry of Defense of Ukraine, in Kyiv, June 13, 2014.