Regulators opened probes Monday after last week¡¯s spectacular collapse of crypto exchange FTX and rival exchanges sought to reassure jittery investors of their own stability, weighing on cryptocurrencies.

The implosion of FTX, once a darling of the crypto industry with a $32 billion valuation as of January, has spurred investigations by the U.S. Justice Department, the Securities and Exchange Commission (SEC) and Commodity Futures Trading Commission, a source with knowledge of the investigations said.

The SEC probe is also targeting FTX executives, their knowledge of the handling of customer funds and any potential breach of securities laws, a second source with knowledge of the investigation said.