Japan's Mizuho Bank says its ATMs and Internet banking services will be offline all weekend as it battles to fix computer problems.
The bank's 5622 ATMs and its online services were knocked out yesterday and although they briefly recovered, a decision has now been taken to suspend them until Monday.
According to AP, the problems have already affected more than one million transactions worth around 700 billion yen.
Mizuho says customers whose salary payments have been delayed by the problems can now visit one of its 440 branches and withdraw up to 100,000 yen.
The outages have hit as demand for cash rises in the wake of Friday's earthquake and subsequent tsunami as well as the ongoing fears surrounding the damaged Fukushima Daiichi nuclear plant.
Although the bank does not think the systems problems have been directly caused by the disaster, a surge in transactions as a result may be responsible.