'Routine Update' Knocks Out Union Bank Computers

SOUTH PASADENA, CA -- Thousands of Union Bank customers were without banking service Tuesday when the computers at the financial institution went out of service.

The problem started around 9:30 a.m., according to a Union Bank tweet. The bank said the problem was caused by a routine update that knocked out service to online banking and ATMS.

"We had experienced an unanticipated delay within our internal overnight processing that affected various systems," Union Bank spokeswoman Tanya Peebles-Hil said. "We apologize for any inconvenience this may have caused our customers."

Online banking, ATMs and other systems were back up and running at around 6 p.m., she said.

During the outage, at least one branch in San Diego was limiting withdrawals to $500, according to a customer's tweet.