Polish Prime Minister Donald Tusk said Friday that this week’s drone incursions into his country’s airspace were deliberate acts by Russia, rejecting U.S. President Donald Trump’s suggestion that the incident may have been accidental.

“We would also wish that the drone attack on Poland was a mistake. But it wasn’t. And we know it,” Tusk wrote on X.

Polish forces, backed by NATO aircraft, shot down multiple drones early Wednesday after they entered Polish airspace — the first known instance of a NATO member firing shots during Russia’s war in Ukraine.

Earlier Friday, Deputy Defense Minister Cezary Tomczyk also pushed back on Trump’s remarks.

“I think this is a message that should reach President Trump today: There’s no question of a mistake — this was a deliberate Russian attack,” he told local broadcaster Polsat News.