Russia temporarily restricted flights of aviation over parts of Crimea and the Black Sea, according to a notice to airmen (NOTAM).
"The area has been declared temporarily dangerous for aircraft flights," the NOTAM document said.
The zone of restriction of flights includes some areas over the southern part of Crimea, from Sevastopol to Feodosia, the territorial waters adjacent to the Southern coast of Crimea, and part of the international waters of the Black Sea.
Reminding, that on April 14, Russia announced that it suspended the possibility of foreign warships passage through its territorial waters in the Black Sea from April 24 to Oct. 31.
The move came a day after Russian Defense Minister Sergey Shoygu said Russia "is taking measures in response to threats from NATO." In a separate statement, Deputy Foreign Minister Sergey Ryabkov explained that the limitations are valid only for warships, not for trade and civil vessels.
According to Apostrophe, the Russian Federation closes the passage by the Kerch Strait from April 24 to October 31. The ban applies to foreign warships and state ships.