Interior Minister Marcin Kierwiński told reporters in Warsaw that German authorities had detained the men in connection with the September 23 fire near the central Polish town of Grójec.
"It was an act of sabotage," Kierwiński said, adding that German authorities acted on evidence gathered by Poland's Internal Security Agency (ABW), police and prosecutors.
Police said the two men were awaiting transfer to Poland under a procedure based on European arrest warrants.
Prime Minister Donald Tusk said on X that the suspects "will face justice in Poland."
"When they arrive in Poland, they will be charged with sabotage and acting on behalf of a foreign intelligence service," said Kierwiński.
Tomasz Siemoniak, the government minister in charge of Poland's security services, said there was "no doubt that Russian security services are behind this act of sabotage."
He said Russian intelligence services were increasingly turning to individuals linked to the criminal underworld to carry out such operations.
Police chief Marek Boroń said investigators had reconstructed the suspects' preparations for the attack and their escape from the scene.
"We secured recordings indicating this specific act," Boroń said, adding that investigators had fingerprints and DNA evidence as well as information on the suspects' movements, including when they entered Poland and when they left.
Boroń said one of the suspects was a resident of Germany, while the other had been ordered to leave Germany.
He expressed hope that both would be handed over to Polish authorities soon.
Kierwiński said arrest warrants and European arrest warrants for both suspects had been issued the previous week.
Starlink is a satellite internet service developed by SpaceX, the aerospace company run by US tech tycoon Elon Musk. Photo: Wikideas1, CC BY 4.0 <https://creativecommons.org/licenses/by/4.0>, via Wikimedia Commons
The fire broke out on the evening of September 23 at a Starlink site in the village of Wola Krobowska near Grójec in Poland's east-central Mazowieckie region.
Two days later, prosecutors opened an investigation into suspected sabotage and "a terrorism-related offence carried out on behalf of a foreign intelligence service."
The Starlink site is operated by state-owned telecommunications company Exatel and serves as an internet hub for traffic passing through Poland to countries including Ukraine.
A Starlink terminal used by the Ukrainian army. Photo: Mil.gov.ua, CC BY 4.0 <https://creativecommons.org/licenses/by/4.0>, via Wikimedia Commons
(gs)
Source: IAR/PAP, TVP Info