Police investigating the killing of a woman whose body was found dumped under a flyover have released CCTV of the victim walking home the day before she went missing.
Pardeep Kaur, 30, disappeared on October 17 after she had set off for work at around 6.10am.
Her body was found the following weekend.
The remains were concealed in waste ground underneath the Harlington High Street flyover in Hayes, west London, near her usual route to the hotel at which she worked.
A "key line of inquiry" in the murder probe is that Ms Kaur was attacked by a stranger, the Metropolitan Police said.
A post-mortem examination into her death conducted on Tuesday was inconclusive and further tests are awaited.
The images issued by detectives show her walking back the day before she vanished - wearing the same clothes and carrying the same handbag.
Officers said they were keen to locate the bag.
Detective Inspector Jamie Stevenson said: "We have carried out extensive CCTV and house-to-house inquiries piecing together information about Pardeep's last known movements.
"Pardeep left home to head to work at a nearby hotel at about 6.10am on Monday, 17 October.
"We know that she never arrived at work and that her body was recovered, five days later, very near to a route she took to work.
"A key line of inquiry for this investigation continues to be that Pardeep was attacked by a stranger on her walk to work that morning and, sadly, was most likely murdered before she was reported missing.
"I am appealing to local residents who live near by the wasteland, or specifically in the areas of Carlton Avenue and Bedwell Gardens.
"We are releasing a CCTV still showing Pardeep on her way home from work on Sunday, 16 October - the day before she went missing.
"It shows her wearing the same clothing and carrying the same handbag that she had on the morning she went missing.
"We have yet to find Pardeep's handbag - it was a black shoulder bag - and I would like to hear from anyone who has found a discarded handbag matching that description abandoned in the street or in their garden."
Anyone with any information is asked to call the incident room on 020 8358 0200, or contact Crimestoppers anonymously on 0800 555 111 or via crimestoppers-uk.org.