A motorcyclist has been killed after hitting a rock face in Sydney's Royal National Park.
Police are warning motorists to avoid the area.
The man, aged in his 20s, lost control of his bike on Sir Bertram Stevens Drive near Flat Rock Creek in the park in southern Sydney at 3.05pm (AEST) on Sunday, police said.
The man died at the scene.
An investigation into the crash is now underway.
Police advised motorists to avoid the area or take alternative routes to the Royal National Park.
Diversions are in place until further notice at the Princes Highway at Loftus. They are also in place at the intersection of Bundeena Drive and Sir Bertram Stevens Drive.