A fresh appeal to find Katrina Elizabeth Woods who disappeared from a Hammersmith street has been launched by police.
Katrina Elizabeth Woods, who has a distinctive brown mole on her left cheek, was last seen on May 24. She has not been seen since she left her home, Abercorn House, in Bute Street.
PC Scott Johnson, leading the search for the 29-year-old Australian, said: "All we know is that she had been working as a teaching assistant. She has socialised in the Hammersmith area and we know that she has been to the library in Shepherd's Bush Road.
"In April, she lost her handbag containing her Australian passport at McDonald's in King Street, Hammersmith. We know that she is not eligible for a British passport, so that obviously limits her movements."
His hunt is being made more difficult because her Australian friends have returned home.
He added: "We do know that she had become a bit down because all her friends had gone back to Australia."
Katrina, known as Kat, had stayed at Abercorn House, a backpackers's hostel, from June 2007 until her disappearance. PC Johnson added: " We urge Katrina to contact us, as we need to know that she is safe and well. Katrina's family and friends are desperate to hear from her and as time progresses, their concerns keep growing.
"Before Katrina was reported as missing, she had been keeping in touch with loved ones via emails. This regular contact has since ceased."
The officer is urging school staff, teachers and teaching assistants to get in touch if they know Katrina. He is also keen to hear from Australians, New Zealanders or any other travellers who know her.
Before she disappeared, Katrina had spent two weeks in Brighton before moving to Hammersmith. She had also lived in Wimbledon.
She is of medium build with brown eyes, blonde hair, and is approximately 5ft 7in tall.
Anyone with information is asked to call the Hammersmith and Fulham Missing Persons unit on 020 8246 2815.