China's central bank on June 21 said it had recently summoned some banks and payment institutions for harder crackdowns on cryptocurrency trading.

The institutions cannot provide crypto-related products or services, including account opening and clearing, said the People's Bank of China in a statement, adding they should timely cut the payment channels for cryptocurrency trading.

The move came shortly after the country's crackdown on cryptocurrency "mining" in several provinces, including the most recent one in the southwestern province of Sichuan ordering the closure of 26 suspected cryptocurrency mining projects.