SOS spelt out in rocks found in remote WA

A pilot flying over northern WA alerted police to SOS written with rocks near the coast, and officers are trying to establish if anyone is missing in the area.

An SOS sign made from rocks on a remote WA northern coastline has been spotted by a pilot and police are trying determine if anyone is missing in the area.

The large distress sign was found in the Swift Bay area in the past week, but may have been there for years, a police spokesman said on Thursday.

The area has been thoroughly searched and there are no traces of human activity, and police are asking anyone who has been in the area to come forward.