WARSAW, Poland (AP) — A prosecutor says that Poland has asked U.S. authorities to release data from an IT company's cloud that could be vital for the ongoing probe into a government eavesdropping scandal.

Spokeswoman for a Warsaw prosecutor's office, Renata Mazur, said Thursday that a request was sent to U.S. justice authorities in January. She refused to name the IT company in question.

Polish prosecutors believe the cloud may hold some conversations between former government ministers and business people that were secretly taped in Warsaw restaurants. Some of the compromising conversations were published last year by the Wprost magazine, leading to some lower-ranking officials being fired, but many other recordings remain unknown.

Two businessmen and two waiters have been charged in the probe.