Update: A solo sailor has been rescued after he suffered an injury on his vessel south of Lancelin this morning.
Lancelin Sea Search and Rescue Group volunteers transferred the man from his catamaran onto their boat shortly after 10.40am.
It is understood the solo sailor sustained a back injury which made it difficult for him to operate his boat alone.
He activated his EPIRB off Ledge Point about 9.30am.
He has been taken to Lancelin where he is expected to undergo medical treatment.
The RAC Rescue helicoper was deployed to assist with the search.