The official Soviet news agency said Tuesday that a telephone sweepstakes offering an American a chance to travel to the Soviet space station was a hoax.

Glavkosmos, the Soviet equivalent of NASA, said it did not know anything about the project. Vladimir Zenkin, deputy commercial manager at the Energia agency, said there were no deals to allow an American to spend a week on the space station Mir in 1992 or 1993.Space Travel Services, the American company promoting the offer, offered callers to a 900-number a chance to win six months' training, a trip aboard a Soviet rocket and a week on the space station Mir. Entrants paid $2.99 a call.

Officials at Space Travel Services could not be reached for comment.

Thousands of calls Monday, the first day the line was open, overloaded the circuits. The line was working again on Tuesday.