UPDATE 9.40am: A report will be prepared for the Coroner after a woman was taken by a shark in Tathra on Thursday morning.
About 8.20am, a South Coast woman, aged in her 60s, was swimming with a group of people between Tathra Wharf and Tathra Beach.
It would appear the woman had turned back and was swimming on her own, police said.
Witnesses have told police the woman was taken by a shark just after 8.30am.
Emergency services are at the beach and a search is underway.
Surf life savers, Westpac Lifesaver, paramedics and Water Police are involved in the search.
Reports of the shark attack came through early Thursday morning.
Surf Lifesaving NSW spokeswoman, Donna Wishart, said lifesavers were first notified of the incident at 8.45am by NSW Ambulance.
She said someone on scene had made a triple-0 call, alerting emergency services.
"The club call out team are involved and the rescue helicopter from down there as well," she said