Some of the army green vehicles had Russian license plates and numbers indicating that they were from the Moscow region. Some towed mobile kitchens and what appeared to be mobile medical equipment.
Vladislav Seleznyov, a Crimean-based spokesman for the Ukrainian armed forces, told AP that witnesses had reported seeing amphibious military ships unloading around 200 military vehicles in eastern Crimea on Friday night after apparently having crossed the Straits of Kerch, which separates Crimea from Russian territory.
"Neither the equipment, nor the paratroopers have insignia that identify them as Russian, but we have no doubt as to their allegiance," Seleznyov said.
The amphibious operation appeared to be one of the largest movements of Russian military forces since they appeared in Crimea a week ago.
Seleznyov also said a convoy of more than 60 military trucks was spotted Saturday heading from Feodosia toward Simferopol, the regional capital. An AP reporter caught up with the convoy and trailed it to Russian-controlled airfield. In the rear of the vehicles, heavily armed soldiers could be seen, though none appeared to have identifying badges or insignia. Soldiers spat at the reporters following them.
The regional parliament in Crimea has set a March 16 referendum on leaving Ukraine to join Russia, and senior lawmakers in Moscow said they would support the move, ignoring sanctions threats and warnings from President Barack Obama that the vote would violate international law.
The strategic peninsula in southern Ukraine has become the flashpoint in the battle for Ukraine, where three months of protests sent President Viktor Yanukovych fleeing to Russia. A majority of people in Crimea identify with Russia, and Moscow's Black Sea Fleet is based in Sevastopol, as is Ukraine's.
While the U.S. and the EU urged Russia to engage in dialogue with new Ukrainian authorities, the Kremlin has refused to do so, denouncing the change of power in Ukraine as an "unconstitutional coup."
Russian Foreign Minister Sergey Lavrov said Moscow sees no sense in having a dialogue with Ukraine's new authorities because, in his view, they kowtow to radical nationalists.
"The so-called interim government isn't independent, it depends, to our great regret, on radical nationalists who have seized power with arms," he said at a news conference. He said that nationalist groups use "intimidation and terror" to control Ukraine.
Despite that tough talk, the Russian Foreign Ministry said Grigory Karasin met Saturday with Ukrainian Ambassador Volodymyr Yelchenko, the first such diplomatic contact since the crisis began. In a terse statement, the ministry said only that they discussed issues related to Russian-Ukrainian ties in a "sincere atmosphere."
At a news conference in Kiev, Ukraine's new foreign minister, Andrii Deshchytsi spoke hopefully about creation of a contact group made up of foreign ministers of various countries to mediate the crisis. Forming the group was an idea discussed during meetings between Ukraine's prime minister and European Union leaders in Brussels on Thursday.
Deshchytsi said that he learned from mediators that Russia hasn't "categorically' refused the idea of permitting a contact group to help broker an end to the dispute.
"The Russians are thinking," Deshchytsi said, so there is "reason to hope." He reiterated that the new Ukrainian government understands it is vital to need to establish good relations with all neighbors, including Russia.
Russia's President Vladimir Putin has said that Moscow has no intention of annexing Crimea, but that its people have the right to determine the region's status in a referendum.
The Crimean referendum has been denounced by Ukraine's new government, and Obama has said it would violate international law. The U.S. moved Thursday to impose its first sanctions on Russians involved in the military occupation of Crimea.
Speaking on BBC on Saturday, NATO Secretary-General Anders Fogh Rasmussen said that while there is no military response to the recent events of Crimea, the crisis was a reminder of threats to European security and stability.
"I do believe that politicians all over NATO will now rethink the whole thing about investment in security and defense," he told the BBC. "Obviously, defense comes at a cost but insecurity is much more expensive."
An international military mission composed of officers from the U.S. and 28 other nations tried again Saturday to enter Crimea, but it was turned back around the town of Armiansk by armed men.
An AP reporter traveling with the 54 observers from the Organization for Security and Cooperation in Europe said that after the group had stopped, the armed men fired bursts of automatic weapons fire to halt other unidentified vehicles. No injuries were reported.
In Simferopol, meanwhile, a public ceremony was held for the swearing-in of the first unit in the pro-Russia "Military Forces of the Autonomous Republic of Crimea." About 30 men armed with AK-47s, and another 20 or so unarmed, turned out. They ranged in age from teenagers to a man who looked to be about 60. They were sworn in at a park in front of an eternal flame to those killed in World War II.
Sergei Aksyonov, the Crimean prime minister, came to the ceremony and was greeted by the soldiers with shouts of "Commander!"
He said their main role, at least until the referendum, would be to "keep the peace." He said he didn't foresee any fighting with the Ukrainian soldiers still at bases in Crimea.
"We are not enemies with those soldiers who pledged loyalty to the Ukrainian state. They are not our enemies," Aksyonov said. He said they would be given the chance to go safely back to Ukraine if they want.
In the week since Russia seized control of Crimea, Russian troops have been neutralizing and disarming Ukrainian military bases here. Some Ukrainian units, however, have refused to give up. Aksyonov has said pro-Russian forces numbering more than 11,000 now control all access to the region and have blockaded all military bases that haven't yet surrendered.
On Friday evening, pro-Russia soldiers tried to take over another Ukrainian base in Sevastopol, resulting in a tense standoff ensued that lasted for several hours.
Lt. Col. Vitaly Onishchenko, deputy commander of the base, said three dozen men wearing unmarked camouflage uniforms arrived late Friday. While one group climbed over a wall on one side of the base, another crashed a heavy military truck through the gates, Onishchenko said.
He said Saturday that they turned off power, cut telephone lines and demanded that about 100 Ukrainian troops, who barricaded themselves into one of the base buildings, surrender their weapons and swear allegiance to Russia. The invaders left around midnight.
No shots were fired in and no injuries were reported.
Russia has described the troops who wear green uniforms without insignia as local "self-defense forces." But Onishchenko said the troops who tried to overrun his base were clearly Russian.
"These were Russian servicemen specially ordered," he said. "Their watches were set to Moscow time. They spoke with Russian accents and they didn't hide their allegiance to the Russian Federation."
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