MOSCOW, October 30 (RIA Novosti) - Russian...

The tycoon then denied providing sensitive information to the FBI, citing he would never betray "Russian interests", the paper said.

However, a spokesman for Deripaska was quoted by the Wall Street Journal as saying the assertions that the billionaire entered the U.S. on special permits arranged by the FBI were "inaccurate".

"Mr. Deripaska did visit the U.S. twice this year for business meetings," he said, adding "Mr. Deripaska has no travel restrictions to any country including the U.S."

Deripaska was allowed to enter the U.S. to talk to investigators in 2005, but his visa was revoked a year later by the State Department due to officials" concerns about the truthfulness of his statements during the course of those talks.