Westpac has restored access to its internet banking services with customers reporting they were unable to access their online banking accounts for multiple days.

Westpac initially reported the outage, which affected its online and mobile banking channels, via social media service X (formerly Twitter) on Monday afternoon (1:40 pm), stating it was “aware that customers are experiencing issues accessing online and mobile banking” with its “teams are working to fix the issue”.

An update issued at 4:00 pm Monday announced that the services were “restored”.

However, the outage appeared to be affecting customers well into Tuesday, with the bank issuing a follow-up message that it was aware of further outages to its online banking channels for its Westpac, St George and Bank SA brands.

Westpac earlier today issued an apology to customers for the disruption, announcing its services were now fully restored.

It has yet to provide a reason for the outage.

The multi-day outage saw customers unable to log in to their mobile app banking services; others reported being unable to load Westpac’s online banking website.

Westpac also confirmed outages for some EFTPOS and eCommerce services that process merchant transactions.

Online service outage tracker Downdetector recorded a spike in reported outages early this morning, with around 2,000 reports issued between 7:30 am and 8:00 am.

Since then, Downdetector has received a steady stream of around 60-90 outage reports every 15 minutes for Westpac banking services.