Swiss investigators have not yet made public evidence or witnesses to support their assertions.
Swiss investigators say that a construction company may have paid him over $1 million in exchange for contracts to renovate the Kremlin.
Swiss investigators have not yet released the final report on their inquiry.
Swiss investigators, he said, told him that the amounts involved were "impressive."
Swiss investigators are finding funny money in secret bank accounts of President Yeltsin's personal and official family members.
To be sure, German and Swiss investigators have yet to determine the cause of the crash over Germany.
But therein lies the rub for the Swiss investigators.
Swiss and French investigators are stepping up their inquiry into a stock swindle that they say cost investors at least $80 million.
Kettler Investment was one of the most active, according to Swiss investigators.
After a while, he told Swiss investigators, he could no longer keep track of his millions as they ricocheted across the world's financial markets.