"The Russians have been doing electronic warfare for a long time," James Black, of the RAND Corporation think tank, told Newsweek.

Four waves of drone attacks were reported in Russia from the early hours of Nov. 26, with the Russian Ministry of Defense claiming to have "downed" 24 drones across five regions, as well destroying two missiles over the Sea of Azov.

The Russian capital has come under attack from drones regularly since May, with Russian officials blaming Ukraine. Military analysts commented at the time that the early attacks deployed Ukrainian locally made drones which could not carry as heavy a payload as the Iranian-made Shaheds used by Russia.

Ukrainian intelligence has planned large-scale drone attacks on Russian regions on the night of 25-26 November in retaliation for the unprecedented Shahed drone attack Russia launched on Kyiv the night before.

Russia escalated its attacks on the Ukrainian capital after several weeks of halt, by launching several drone attacks on the Kyiv, Poltava and Cherkasy regions of Ukraine, Al Jazeera reported, citing Ukrainian officials.

A big storm over occupied Crimea damaged Russia's naval defenses there, a report said.Satellite images showed damage to booms and barges meant to defend from sea drones.The gap presents a vulnerability.