The body of a man has been found in the Black Cart River near Linwood.
Police were alerted to the discovery in a stretch of water near the Riverside Path next to the A761 on Thursday around 9.10pm.
A Police Scotland spokeswoman said: “Police received a report at about 9.10pm on Thursday night of an unidentified male who had been found in water close to an area known locally as the Riverside Path.
“Enquiries are under way to establish the male’s identity whose death is being treated as unexplained.
“A post-mortem will be carried out to establish the cause of death.”