MOSCOW, May 25 (RIA Novosti) - Jailed Yukos founder Mikhail Khodorkovsky accused Russia's Federal Security Service (FSB) on Monday of listening in on his lawyers' telephone conversations.

"I have sufficient grounds to suppose that since the start of hearings, FSB structures, illegally interfering in the trial, have taken control of telephones and other means of communications used by my lawyers," Khodorkovsky said in court.

Khodorkovsky said that while he had no direct evidence to back up his claims, he believed the FSB was acting on behalf of the Prosecutor General's Office.

The Prosecutor General's Office declined to comment.

Khodorkovsky and his business partner, Platon Lebedev, who have been serving eight-year sentences for fraud and tax evasion since 2005, were transferred from a Siberian prison to a Moscow detention center in February to stand trial on fresh embezzlement and money laundering charges.