Three paramedic units remain on site at the Wyong Road/Reliance Drive roundabout at Tuggerah, after a car left the road and became lodged between a fence and a railing around 11:15.
Ambos say an couple in their eighties have both sustained minor injuries - they, the Central Coast Rescue Squad and Police are reportedly working to free one of them still trapped.
One of two Westbound lanes is still closed.
It's one of two accidents that's been affecting Wyong Rd traffic towards the M1 this morning.
A motorbike rider also suffered minor injuries after colliding with a car at Berkeley Road at Berkeley Vale just after 11.
He didn't need to be taken to hospital.