Aotea Quay near the overbridge to Hutt Road in Wellington is currently closed following a crash.
Police were notified of a single vehicle crash involving a fuel truck at around 2:45am.
No injuries have been reported.
The Aotea Quay on-ramp heading northbound is blocked.
Motorists can still get off State Highway 1 via the Aotea Quay off-ramp.
The truck has spilt diesel onto the road and road closures will remain in place throughout the morning.
Motorists are advised to avoid the area and expect delays.
ENDS
Issued by Police Media Centre