NSW cyclist dies following crash

A female cyclist has died four days after a crash south of Sydney.

Emergency services were called to McKell Avenue at Waterfall on Saturday morning after reports a cyclist and a car had collided.

Officers found a 35-year-old woman with serious injuries.

Police were told the woman was riding along the road when she collided with a car travelling in the opposite direction.

Police say the woman died in hospital on Tuesday.

Inquiries into the crash are continuing, police say.

A 23-year-old man died late on Monday night when his car ran off the road and hit a tree late at Salamander Bay near Port Stephens.