The National Australian Bank has apologised to customers trying to access mobile internet banking and call centres due to a system outage.

The bank’s chief consumer officer Andrew Hagger on Wednesday morning said the national outage was affecting a number of its systems, including customer call centres, mobile internet banking and the processing of some customer payments.

ATMs are running as usual and payment by all NAB cards is available despite the outage, he said.

“We’re sorry that we’ve let our customers down and we’ll do our best today to work with you through our branches,” Mr Hagger said.

“We recognise the impact that this outage is causing and we can assure you we’re working hard to make things right.”

-AAP