Zelensky said Ukraine would not be "playing games to create a pleasant atmosphere" on May 9, when some foreign leaders are due in Moscow for WWII commemorations.
The attacks came hours after Russian strikes on the southern city of Zaporizhzhia wounded more than 20 people.
ISIS-K claimed responsibility for the March 2024 attack on a Moscow concert venue that killed 145 people.
A police source told AFP that the suspect was photographing military supply convoys to Ukraine.
Kyiv said the drones had "successfully reached" the Russian GRU military intelligence agency's facility for intercepting and analyzing satellite communications.
Putin proposed establishing the so-called “buffer zone” to safeguard the Kursk region from future attacks during his visit there in March.
After the republic was rocked by protests and repressions, locals are once again fighting to protect their Indigenous lands from irreversible harm.
The Zabaikalsky region currently accounts for more than 87% of the total area engulfed by wildfires across Russia.
Vladimir Saldo claimed that Ukrainian forces used FPV drones in the attack on Oleshky, which lies near the left bank of the Dnipro River.
The company reported a net profit of $14.9 billion last year, reversing a $7 billion loss in 2023, which was its first net loss in a quarter-century.