A FUEL tanker is on fire on the M1 Princes Motorway at West Wollongong.

The 36,000-litre tanker caught fire this morning, causing smoke to billow into the air.

The incident occurred on the Princes Motorway, near the Princes Highway. Fire crews are on the scene.

Traffic in the area has come to a complete stop and commuters are encouraged to avoid the area. The road has since been closed in both directions.

More to come.