The Russian military announced on Wednesday that dozens of Ukrainian drones were intercepted overnight in border regions.
According to a British analysis, Russian forces shot down one of their own fighter aircraft last month.
Belgorod Governor Vyacheslav Gladkov, however, spoke of the damage of an administrative building.
Russia had launched a full-scale invasion of Ukraine more than 19 months ago.
Meanwhile, attacks on Russian territory had increased recently although Moscow often downplays their impact.
However, the extent of the damage and number of victims bear no relation to the consequences of the war in embattled Ukraine.
British analysts said that Russian air defences had accidentally shot down a Russian fighter jet, near the occupied town of Tokmak in southern Ukraine.
“On Sept. 28, Russian air defence forces highly shot down one of their own Su-35S FLANKER M multi-role combat jets over Tokmak, approximately 20km behind the current front line.’’
The British Ministry of Defence said this in its daily update.
It said that although Russia had lost around 90 fixed wing aircraft since the start of the invasion, this is probably only the fifth loss of a Su-35S.
The analysis said Russia’s most advanced combat jet in widespread service.
“The location is relevant because Tokmak is a heavily fortified town which often hosts Russian headquarters commanding one of the most intensely contested sectors of the front line.’’
According to the analysis shared on X, the platform formerly known as Twitter.
“These headquarters would typically be protected with dedicated short and medium range air defence systems.
“These are almost certainly held at very high readiness, as Ukraine continues to conduct effective deep strikes against such locations.’’
(dpa/NAN)