NAB warns rising petrol prices could drive inflation above 5 per cent

A fuel price sign showing $2.25.

Fuel prices hit more than $2.25 in Sydney today. (ABC News: John Gunn)

In short:

Global oil prices have spiked dramatically amid war in the Middle East, with Brent crude rising more than 25 per cent this afternoon.

Petrol prices have surged, with some motorists reporting prices as high as $2.42 a litre in WA.

What's next?

Economists at NAB warn inflation could peak above 5 per cent as fuel prices rise due to the skyrocketing cost of oil.