According to Moscow-installed officials, the Russian navy on Saturday prevented a drone attack on the Sevastopol port, which houses Moscow's Black Sea Fleet, in Russia-annexed Crimea.
The governor of Sevastopol, Mikhail Razvozhayev, said on Telegram, "Today, starting at 3:30 am for many hours, different air defense systems in Sevastopol repulsed drone strikes."
Uncrewed aerial aircraft (UAVs) have all been shot down.
Earlier, Mr. Razvozhayev claimed that the Russian navy was fending off a drone strike.
In the early hours of Saturday, he declared, "Ships of the Black Sea Fleet are repelling a UVA (unmanned aerial vehicle) in Sevastopol harbor."
Although the city's services were on "alert," the governor said that no "civilian infrastructure" had been harmed.
He said, "One windowpane burst" in a hostel at an art institution close to the harbor, but "no harm was done."
He requested that people in the city refrain from sharing event videos on social media.
It should be evident to everyone that such knowledge is crucial for Ukrainian Nazis to comprehend how our city's defense is constructed, the man claimed.
In 2014, Russia seized control of the Crimean Peninsula from Ukraine.
In February this year, its military assaulted Ukraine from several locations, including Crimea.
As Ukrainian forces launched a counteroffensive to recover territory in the Russian-occupied south, the declaration was made.
According to city officials, the harbor was "temporarily" blocked to boats and ferries.
Mr. Razvozhayev said earlier this week that a drone had struck a thermal power plant close to Sevastopol.
In July, a drone also targeted the Russian navy stationed in the harbor.