Update 10:40 am
Two young women have been found after going missing in the Royal National Park overnight.
The pair have arrived back at the search command centre at Waterfall driven in by rescuers.
Earlier:
A search has resumed for two women, who are believed to be missing in the Royal National Park at Sutherland.
About 2pm on Wednesday, officers from National Parks and Wildlife Service received a call from two women, Nicki Groves and Kate Bateup, both 21.
The two women said they were missing in Royal National Park after walking on an unknown track east from Waterfall train station.
Contact with the women was lost, and emergency services were not been able to re-establish communication with them.
Police were notified and a search launched with assistance from the Lifesaver helicopter, the Rural Fire Service , State Emergency Service and park rangers.
The search was suspended about 7pm due to darkness.