A pilot has made the eerie discovery of an SOS sign made from rocks in a remote area of the Kimberley.

The pilot reported the sign in the Swift Bay area to police, who searched the area but didn’t find anyone.

Police have now made a plea for anyone who knows of missing people in the area to contact them.

Anyone with information is asked to contact Crime Stoppers on 1800 333 000 or report the information online at www.crimestoppers.com.au.