A shark has killed a woman as she swam at a popular Australian east coast beach.
Police said in a statement the woman, aged in her 60s, was killed as she attempted to swim between the wharf and beach near the village of Tathra, south of Sydney.
Witnesses told police the woman was taken by the shark as she swam from the wharf back to the beach with a group of other people.
The Thathra Warf to Wharves – a swim from the wharf to the beach and back again - is an annual event that attracts hundreds of swimmers each summer.
Police said a helicopter and boat were being used to search for remains.
Ms Armstrong was some distance from five other swimmers including her husband when they saw a 10ft to 13ft shark, said police inspector Jason Edmunds.
“The group joined up together and did their best to keep the shark at bay, although it didn’t directly attack them,” Mr Edmunds told Nine Network television.
The swimmers did not see the attack, but a witness onshore did. Mr Edmunds said the species of the shark is unknown.