Dmytro Pletenchuk, spokesperson for the Ukrainian Navy, said this in a comment to Ukrinform.

"Over the past two weeks, we have seen that they [the Russians] are experiencing difficulties with this. The number of sorties has decreased by an order of magnitude. Whereas previously there were dozens of sorties per day, now we are talking about only a handful," he said.

According to Pletenchuk, the main problem in the Black Sea remains Russian aviation based in Crimea, which for a long time effectively dominated the airspace. At the same time, he noted that the decline in the number of sorties could affect Russia's ability to carry out its plans in the Black Sea.

"The trend of a decrease specifically in the number of sorties may indicate that they are indeed already experiencing difficulties in supplying the occupation forces in Crimea," the spokesperson said.

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He also noted that despite the decline in aviation activity, Russia continues to use reconnaissance drones intensively, as well as missiles and kamikaze drones to attack civilian vessels.

Russian forces have recently repeatedly attacked vessels that have been docked in the Mykolaiv region's ports for an extended period. Such attacks have no military purpose and are aimed at creating propaganda footage for a Russian audience.