A Belarusian anti-government activist group has claimed it blew up a sophisticated Russian military surveillance aircraft in a drone attack at an airfield near the Belarusian capital Minsk.
Neither Russia nor Belarus have confirmed the claim.
The Beriev A-50 aircraft has the Nato reporting name of Mainstay and is an airborne early warning aircraft with command and control capabilities and the ability to track up to 60 targets at a time.
As a staunch ally of Russia, Belarus has allowed Moscow to use its territory to launch attacks on Ukraine, though so far has held off from getting directly involved in the war.
“They were drones [that carried out the attack]. The participants of the operation are Belarusians,” Aliaksandr Azarov, leader of Belarusian anti-government organisation BYPOL, was quoted as saying on Sunday on the organisation's Telegram messaging app and on the Poland-based Belsat news channel.
Mr Azarov did not provide immediate evidence to back his assertion.
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BYPOL, which includes former law enforcement officers who support opposition politicians, has been branded a terrorist organisation by Minsk. Belsat is a Polish broadcaster providing critical reporting on Belarus, which Minsk has also branded extremist.
The operation had taken several months to plan and “partisans” would seek to carry out more actions in the future, Mr Azarov said on Monday.
“We work on, continuing our battle against Russian occupiers on the territory of Belarus and with the criminal regime of [President Alexander] Lukashenko that has unlawfully seized power,” he said.
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The Kremlin declined to comment on Mr Azarov's claim, saying that the alleged incident had occurred on the territory of Belarus, which it said had denied the claim.
There was no immediate response to requests for comment from the Belarusian or Russian defence ministries.
Franak Viacorka, an adviser to Belarusian opposition leader Sviatlana Tsikhanouskaya, said in a post on Twitter that two Belarusian “partisans” had been involved in the attack on the Machulishchy airbase outside Minsk.
He said the drones had damaged the front and central parts of the A-50 plane, including the aircraft's radar antenna and avionics. The two people who carried out the attack were now safely outside Belarus, he said.
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“I am proud of all Belarusians who continue to resist the Russian hybrid occupation of Belarus & fight for the freedom of Ukraine,” Ms Tsikhanouskaya, the opposition leader, wrote on Twitter, with a link to her adviser Mr Viacorka's report.
There have been several acts of sabotage in Belarus and in Russian regions bordering Ukraine, especially on the railway system, since the start of Russia's invasion of Ukraine.
The Belarusian human rights group Vyasna said on Monday that a woman had been detained in Machulishchy where the airbase is located. It said it was unaware of the reason for the detention.
Detentions in Belarus are common, especially after Mr Lukashenko crushed mass protests against him in 2020 and jailed all leading opposition figures or forced them to flee abroad.
