Detectives are trying to identify a man who was found dead in a canal on Sunday morning and had a single key and 30-year-old A-Z map book in his possession.
A member of the public reported seeing a body in the canal near to Bramley Fall Woods Park in Leeds at just after 9am.
Police were called and the man was pronounced dead at the scene, Leeds Live report.
West Yorkshire Police are appealing for help to try and identify the man, with detectives "conducting extensive enquiries into the circumstance".
A statement from the force reads: "The man is described as an elderly white male, bald head with white hair on both sides with stubble on the face.
"He was found wearing a beige zipped up waist length jacket, khaki scarf, a blue jumper with a red and green diamond type design on, a brown belt, beige trousers, brown leather gloves, green socks and a green and brown checked shirt with a gold metal wristwatch."
Mysteriously, the unidentified man had just two items on him: a single key and a 30-year-old A-Z map book.
Detective Chief Inspector James Entwistle, of Leeds CID, added: “Extensive enquiries are being carried out into the circumstances of the man’s death and at this time we are treating the death as unexplained.
“We would like to speak to anyone who was in Bradley Fall Wood Park area this morning or overnight and who may have seen this male.
“We would also like to speak to anyone who recognises the description of this man to come forward and provide assistance.”
Anyone with information is asked to call police on 101 or use the live chat facility on their website quoting log 407 of 15 January.
