A Sydney woman has vanished after going to see two men she met on Facebook.
Police have appealed for help to find 18-year-old Nona Belomesoff, who left her home in Cecil Hills in Sydney's west on Wednesday at 10am.
It's believed she spoke to the men on Facebook because they shared similar interests. They arranged to meet at Leumeah Railway Station and Nona planned to return home the next day.
Police said they have spoken to one of the men who said he did not know where she was.
"[Nona's] family have told police that it is completely out of character for her not to return home or contact them," police said in a statement.
"Police also have serious concerns for her welfare and have commenced an investigation into her disappearance."
Nona is described as 152cm tall with a solid build. She was last seen wearing a white shirt and carrying a small bag.
Anyone with information should contact Crime Stoppers on 1800 333 000.