Police are urging anyone who can help piece together the teenager’s movements to contact them.
The family of a murdered 16-year-old girl whose body was found in a park are “devastated” and looking for answers, police have said.
Her body was discovered in Cadzow Glen park at around 10.10am on Sunday.
The teenager’s death was initially treated as unexplained but police launched a murder inquiry on Tuesday following a post-mortem examination.
Police are trying to piece together the last movements of the teenager, who was seen in the town’s Cadzow Street at around 9.55pm on Friday.
Detective Superintendent Raymond Brown told the PA news agency: “Her family and loved ones are understandably devastated by this untimely loss, Amber was a 16-year-old girl with her future in front of her.
“It’s imperative for us to understand the circumstances that led to her death, to not only provide her family with some answers but also to remove the person responsible from the community.
“At this time the most important thing for us to understand is Amber’s movements across Friday evening and any information regarding her movements up to the time she was found dead in the park.
“We know she was in Cadzow Street just shortly before 10pm on Friday night, which would have been busy, there would have been pedestrians, motorists and people going about their general business.
“We would ask anyone in that area if they did see Amber to come forward and tell us what the circumstances in which they’ve seen her are and allow us to take that information and understand how that may assist our investigation.”
Police Scotland said there will be an increased police presence in the area over the coming days and anyone with concerns can speak with local officers at any time.
The gates to the park and part of Cadzow Street were cordoned off on Wednesday as officers carried out investigations.
Anyone with information is asked to call police on 101, quoting incident 1281 of November 28, or Crimestoppers on 0800 555 111 where anonymity can be maintained.