Russia says a military drone attempted to strike gas facility near Moscow
Photographs of the drone posted to social media indicate it was Ukrainian-made.
However, Ukraine does not claim responsibility for attacks inside Russia.
If the strike, along with others on Tuesday, were launched from Ukrainian territory, then it would make them some of the most ambitious since war began.
Airspace was closed over St Petersburg and hackers managed to broadcast a “missile strike threat” over several TV channels and radio stations in Russia.
Authorities say there are no casualties or damage on the ground and the Russian security service are investigating.
