Police are appealing for public assistance to locate a boy missing from Sydney's south west.
William Willis, aged 15,was last seen in Blairmount about 5.15pm on Monday (15 December 2025).
When he was unable to be located or contacted officers from Campbelltown Police Area Command were notified yesterday (Tuesday 16 December 2025).
Family and police hold concerns for William's welfare due to his age.
William is described as being of Caucasian appearance, 155cm tall, of thin build with short brown hair.
He was last seen wearing a black singlet and black trackpants.
William is known to frequent the Blairmount and Campbelltown areas as well as travelling on the rail network.
Anyone with information about this incident is urged to contact Crime Stoppers: 1800 333 000 or https://nsw.crimestoppers.com.au Information is managed on a confidential basis. The public is reminded not to report information via NSW Police social media pages.
