Brett Harrison, the head of U.S. operations for cryptocurrency exchange FTX (FTT-USD), called for additional government regulation on Thursday following a "time for extreme experimentation" in the crypto space, which has led to a series of high-profile meltdowns lately. "That's why it's so important to get proper regulation, especially in the U.S., so that we can remove a lot of these kinds of actors from the system that are doing things that ultimately bring a lot more risk to the system," the President of FTX U.S. told CNBC. Harrison added that a more rigorous regulatory framework would allow for the creation of the "mature industry that we think is possible with crypto." Harrison's comments came amid a sharp downdraft in the crypto market, with Bitcoin (BTC-USD) spending time below $20K in the last few days after hitting a level near $69K last year. At the same time, top names like