A Cossack allied with Russian forces holds a Kalashnikov machine-gun as he stands guard at a check-point set up by Russian forces on a road near the small Ukrainian city of Armyansk on the Crimean peninsula on Wednesday.
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A tank belonging to Russian forces remains at a check-point on a road near Armyansk.
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Armed men believed to be Russian servicemen march outside a Ukrainian military base in the village of Perevalnoye.
Reuters
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Local residents and armed men believed to be Russian servicemen walk in front of the gates of a Ukrainian military unit in Perevalnoye.
Reuters
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Russian Navy ships block the entrance to the Crimean port of Sevastopol.
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Ukrainian Navy divers check their command ship Slavutych at the port of Sevastopol.
Reuters
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A member of the Ukrainian Navy stands guard on top of the Ukrainian navy ship Ternopil at the port of Sevastopol.
Reuters