Russian security forces have raided the offices of the Church of Scientology in Moscow and St. Petersburg on Thursday in connection with an investigation into defrauded homebuyers.

Investigators believe the church may have transferred around 3 billion rubles to its U.S. headquarters in recent years, according to the state-run TASS news agency. The funds were raised during seminars and training sessions held without a license, with an estimated 3-4 million rubles ($45,000-61,000) being raised per week in St. Petersburg, Leningrad region’s FSB press service was cited as saying.

The press service on Friday published a video of the raids.