More than 20,000 Bank of America customers on Wednesday reported issues accessing their account information, according to a site that reports on service outages in real time.
Reports of service issues spiked around 12:45 p.m., according to DownDetector.com.
Most customers reported having issues with their mobile banking accounts.
Bank of America did not immediately respond to requests for comment.
Users reported being unable to transfer money between accounts or seeing an inaccurate balance of zero on their accounts via the banking app.
Other customers said the ATMs would not show their account balance, but they were still able to withdraw cash.
