UPDATE: Police say it could take until tomorrow to determine if the circumstances surrounding the death of a man found in Mandurah today are suspicious.
Around 10.30am police received a phone call from a member of the public who had spotted the body floating in a canal behind Genevieve Court in Halls Head.
Local police and detectives went out on a boat to assess the situation and called for Major Crime Squad detectives and Forensic officers to conduct an independent assessment.
It is believed that the man's body had been in the water for quite some time.
If you or someone you know is feeling suicidal or needs help, contact Lifeline on 131 114.