SIMFEROPOL, Ukraine — Ukraine put its police on high alert after dozens of pro-Russia gunmen stormed and seized local government buildings in Ukraine's Crimea region early Thursday and raised a Russian flag over a barricade.
Ukraine's acting president said that if Russian forces leave their base in the strategic peninsula that “will be considered a military aggression.” Russia maintains a large naval base in southern Crimea that has strained relations between the countries for two decades.
The renewed tension in the peninsula that houses Russia's Black Sea fleet comes as lawmakers in Kiev were expected to approve the new government in the wake of the president fleeing the capital after months of protests over his decision to scuttle an agreement with the European Union in favor of stronger ties with Russia.
Russia has questioned the legitimacy of the new Ukrainian authorities after pro-Russian President Viktor Yanukovych fled last week, and it has accused them of failing to control radicals who threaten the Russia-speaking population in Ukraine's east and south, which includes the Crimean Peninsula.
The men occupying the local parliament building did not immediately voice any demands but threw a flash grenade in response to a journalist's questions. They wore black and orange ribbons, a Russian symbol of the victory in World War II, and put up a sign saying “Crimea is Russia.”
Maxim, a pro-Russian activist who refused to give his last name, said he and other activists had camped out overnight outside the local parliament in Crimea's regional capital, Simferopol, when heavily armed men wearing flak jackets, and holding rocket-propelled grenade launchers and sniper rifles took over the building.
“Our activists were sitting there all night calmly, building the barricades,” he said. “At 5 o'clock unknown men turned up and went to the building. They got into the courtyard and put everyone on the ground.
“They were asking who we were. When we said we stand for the Russian language and Russia, they said: don't be afraid, we're with you. Then they began to storm the building bringing down the doors,” he said.
“They didn't look like volunteers or amateurs, they were professionals. This was clearly a well-organized operation. They did not allow anyone to come near. They seized the building, drove out the police, there were about six police officers inside,” he said.
“Who are they? Nobody knows. It's about 50-60 people, fully armed,” he said.
The events unfolding in Crimea highlighted the divided allegiances between Russia and the West that have deepened amid the political turmoil that has gripped Ukraine in recent months.
Russian President Vladimir Putin on Wednesday put the military on alert for massive exercises involving most of the military units in western Russia, and the military announced measures to tighten security at the headquarters of Russia's Black Sea Fleet on the peninsula.
The maneuvers will involve some 150,000 troops, 880 tanks, 90 aircraft and 80 navy ships, and are intended to “check the troops' readiness for action in crisis situations that threaten the nation's military security,” Defense Minister Sergei Shoigu said in remarks carried by Russian news agencies.
The move prompted a sharp rebuke from U.S. Secretary of State John Kerry, who warned Russia against any military intervention in Ukraine.