St George police are warning people against a hoax which has been circulating on social media.
The hoax is about a wallet being found and a person who collects the wallet warns about ‘‘something bad’’ happening on New Year's Eve or Christmas in Sydney.
Police believe the message has been designed to create fear in the community and are asking people not to share the hoax.
Anyone who has information about possible signs of terrorism in Australia is urged to call the National Security Hotline on 1800 1234 00.
Have you encountered the hoax yet?