Police are searching for a suspected conman who administered a fake COVID-19 vaccine to an elderly woman in her London home.
Detective Inspector Kevin Ives, from City of London Police, said police were appealing for help to identify the man because he "may endanger people's lives".
Police said the victim, 92, allowed the man into her Surbiton home on December 30 after being told he was from the National Health Service (NHS) and there to administer the vaccine.
The woman reported she was jabbed in the arm with a "dart-like implement" before being asked for £160 (AU$280).
The man was paid and left the home but later returned on January 4 asking for a further £100.
"It is not yet known what substance, if any, was administered to the victim, but she was checked over at her local hospital and has suffered no ill effects following this encounter," police said in a statement.
Inspector Ives said it was crucial the man was found.
"This is a disgusting and totally unacceptable assault on a member of the public which won't be tolerated," he said.
The man is described as having a London accent, aged in his early 30s, of medium build with light brown hair.
