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Australia's largest lender's online banking system has gone down, sparking frustration among customers.
Commonwealth Bank acknowledged the outage at 9.30pm today, about half an hour after reports started flooding on website tracker Downdetector.
"We're aware some customers may be encountering difficulties with some of our services right now," the bank said, in a statement posted online.
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"We are urgently investigating this and we're sorry for any inconvenience caused. We will provide further updates here.
"We're sorry for the inconvenience. Thanks for being patient with us."
Customers trying to log in to the CommBank app were greeted with a notice saying, "We're working to fix an issue affecting our services".
A similar message was shown on the banks' NetBank website as the bank's social media channels were flooded with complaints.
"What is going on I can't access my account and I need to transfer money!" one user of X, formerly Twitter, said.
