MarketsCryptoChina Widens Ban on Crypto Transactions; Bitcoin TumblesChina’s central bank says crypto transactions are illegalOfficials vow to root out illegal mining of digital assetsWATCH: Digital tokens tumbled as China intensified its push to rein in crypto speculation and mining. Source: BloombergBloomberg NewsSeptember 24, 2021, 9:40 AM UTCUpdated onSeptember 24, 2021, 1:16 PM UTCFromFollow @crypto Twitter for the latest news.China banned on all crypto transactions and vowed to root out mining of digital assets, delivering the toughest blow yet to the industry.