A major search and rescue operation has been launched in Perth.
Emergency crews were scrambled to the city centre on Sunday afternoon, amid concerns for missing man Michael McGannon.
The 73-year-old disappeared from the North Muirton area of the city at about 9pm on Saturday.
Police said there is “growing concern for his welfare”.
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Crews are focusing their efforts on an area around Queen’s Bridge and Tay Street.
Firefighters are using an inflatable raft to search the river, while the Police Scotland helicopter has been out searching from above.
Rescuers were called to the scene just before 12pm.
Mr McGannon was last seen at his Iona Court home on Saturday night.
He is described as being 6ft 1in tall, slim with grey hair.
At the time he went missing, he was thought to have been wearing a green fleece jacket and dark trousers.
Inspector Mark Veal said: “We are becoming increasingly concerned for Michael’s welfare and are keen to trace him as soon as possible.
“Given his age and the adverse weather over the past 18 hours, we would like to know he is okay and would urge anyone with information to contact us.”
He made an appeal directly to Mr McGannon: “If you are reading this, please let us know you are safe.”
Anyone who may have seen Mr McGannon is urged to call police on 101 quoting incident number 1298 of Sunday, December 8.