Ukrainian Verkhovna Rada Chairman and interim President Oleksandr Turchynov is calling on the Russian Black Sea Fleet servicemen stationed in Crimea not to leave the boundaries of their base determined by the relevant Ukrainian-Russian agreements.

"I am addressing the Russian Black Sea Fleet command with a demand: all military servicemen should stay within the boundaries of the territories stipulated by the agreement. Any movement of military servicemen with weapons outside this territory will be viewed as military aggression," Turchynov said while speaking at the Verkhovna Rada on Thursday.

Turchynov also warned that "Ukrainian enemies should not try to destabilize the situation, should not encroach on our independence, sovereignty, and territory."

He called for "immediately starting to form a government that would be obliged to ensure security of Ukrainians and restore law and order."

The Verkhovna Rada's session on Thursday will continue until a new government is confirmed, he said.

"Ukraine will be able to defend its independence, sovereignty, and the inviolability of its territory," he said.

Turchynov announced also that he had issued instructions that all possible measures be taken to protect people in Crimea and unblock the buildings seized in Simferopol.

"All necessary measures must be taken to protect citizens, punish those guilty of seizures in line with the law, and unblock the building. I am calling on all Ukrainians to stay calm, and on patriots to defend administrative buildings from instigators and extremists. Any attempts to seize administrative buildings will be viewed as a crime against the Ukrainian state," Turchynov said at a plenary parliamentary session on Thursday.