SIMFEROPOL, Ukraine (AP) -- Dozens of armed men in military uniforms without markings were patrolling the airport in the capital of Ukraine's strategic Crimea region on Friday as tensions in the country's Russian-speaking southeast escalated.
Russian state television quoted eyewitnesses saying the men arrived at the Simferopol airport in the early hours on Friday.
An Associated Press photographer saw military men armed with assault rifles Friday morning patrolling the airport. The men, who were wearing uniforms without any insignia, refused to talk to journalists, and it was not immediately clear who they were.
On Thursday, masked gunmen with rocket-propelled grenades and sniper rifles seized the parliament and government offices in Simferopol and raised the Russian flag over the parliament building.
The events in the Crimea region have heightened tensions with neighboring Russia. It scrambled fighter jets on Thursday to patrol borders in the first stirrings of a potentially dangerous confrontation reminiscent of Cold War brinksmanship.
Russia also has granted shelter to Ukraine's fugitive president, Viktor Yanukovych, after recent deadly protests in Kiev swept in a new government.
Yanukovych has a news conference scheduled Friday in Russia's south near the Ukrainian border. He has not been seen publicly since Saturday, and he declared Thursday in a statement that he remains Ukraine's legitimate president.
Ukraine's parliament on Thursday elected a new government led by a pro-Western technocrat who promptly pledged to prevent any national break-up.
Moscow has been sending mixed signals about Ukraine but pledged to respect its territorial integrity. Russian President Vladimir Putin has long dreamed of pulling Ukraine -- a country of 46 million people considered the cradle of Russian civilization -- closer into Moscow's orbit.
The escalating conflict has sent Ukraine's finances plummeting, prompting Western leaders to prepare an emergency financial package.
For Ukraine's neighbors, the specter of Ukraine breaking up evoked memories of centuries of bloody conflict.
"Regional conflicts begin this way," Polish Foreign Minister Radoslaw Sikorski said Thursday, calling the confrontation "a very dangerous game."
Ukraine's new prime minister, Arseniy Yatsenyuk, on Thursday said the country's future lies in the European Union, but with friendly relations with Russia.
Yatsenyuk insisted the country wouldn't accept the secession of Crimea. The Black Sea territory, he declared, "has been and will be a part of Ukraine."
Oleksandr Turchynov, who stepped in as acting president after Yanukovych's flight, condemned Thursday's assault in Simferopol as a "crime against the government of Ukraine." He warned that any move by Russian troops off of their base in Crimea "will be considered a military aggression."
Ukraine's population is divided in loyalties between Russia and the West. Crimea, which was seized by Russian forces in the 18th century under Catherine the Great, was once the crown jewel in Russian and then Soviet empires.
It only became part of Ukraine in 1954 when Soviet leader Nikita Khrushchev transferred jurisdiction from Russia -- a move that was a mere formality until the 1991 Soviet collapse meant Crimea landed in an independent Ukraine.
In a bid to shore up Ukraine's fledgling administration, the International Monetary Fund has said it is "ready to respond" to Ukraine's bid for financial assistance. The European Union is also considering emergency loans for a country that is the chief conduit of Russian natural gas to western Europe.
Ukraine's finance ministry has said it needs $35 billion over the next two years to avoid default.