Police pursuit ends in fiery smash

A police pursuit has ended with two cars erupting into flames on a New South Wales highway.

The pursuit began when a silver Nissan X-Trail failed to stop on the Pacific Highway at Ulmarra, Grafton, about 10am today, police said.

The Nissan later crossed into the north-bound lanes of the highway, and collided with a four-wheel drive.

Images obtained by 9NEWS show smoke and bright orange flames pouring from the vehicles in the aftermath of the crash.

Both drivers have been taken to Coffs Harbour Hospital with non-life-threatening injuries.

The Pacific Highway has now re-opened in both directions at Ulmarra.