ANZ Bank experienced problems with its internet banking system this morning, leaving some customers unable to log on.
Customers began posting on the bank's Facebook page at about 9:40am, complaining about being unable to get access to the internet banking service.
"ANZ Internet banking is down again! Please can u sort it out," Caleb Hendry posted at 10:30am.
An ANZ spokesman said a small number of customers were unable to log on to internet banking for about 20 minutes this morning.
The issue had now been resolved but some customers may need to refresh their browsers, he said.