What crime did FTX commit?

I understand that FTX is a well-known cryptocurrency exchange platform, but recently it has been reported that it has committed some criminal acts. I want to know what specific crimes FTX is suspected of committing? Has it been confirmed by the relevant authorities? If so, what are the details of the case? How did FTX manage to commit such acts? What measures will the relevant authorities take to deal with this? I hope you can give me a detailed explanation.