PNC Bank is working with cryptocurrency exchange Coinbase to offer crypto trading to the bank's customers, the companies said on Tuesday, in a sign that crypto is moving toward becoming increasingly interconnected to mainstream finance.

PNC Financial Services Group Inc. formed a partnership with crypto exchange Coinbase Global Inc. to offer its banking customers access to digital-currency services.

Coinbase has partnered with PNC Bank to offer the firm’s clients the option to buy and sell crypto directly from their accounts.