Joseph Lam, a former lawyer and cryptocurrency influencer, has been arrested in Hong Kong in connection with the investigation into cryptocurrency exchange JPEX. The police raided Lam's office and seized boxes of evidence, including banknotes. Lam had previously urged affected users to report losses to a hotline set up by the police. JPEX has suspended some operations and raised withdrawal fees following an ongoing liquidity crisis, with at least 83 complaints involving virtual assets worth about HK$34 million ($4.3 million) received by the police.