Hopes are fadingĀ in the hunt for a man seen in the River Tay on Monday night.
The alarm was raised by a member of the public who saw a person in the water near Queenās Bridge in Perth shortly after 9pm.
Emergency services assembled at first light on Wednesday to continue the hunt, which has seen police, fire and coastguard teams scour the banks of the river for three days.
Police have said they believe the man to be Iain Guthrie, a 20-year-old who was reported missing at 9.50pm on Monday.
Alan Pettigrew, team leader of Police Scotlandās mountain rescue team, said the search was continuing, but the likelihood of anyone being alive after more than 36 hours in the water was slim.
Iain is described as being about 5 feet 9 inches tall, of slim build with short black hair and brown eyes. When last seen in Dundee Road, Perth, at about 8.50pm on Monday, he was wearing a dark green fleece top, dark blue jeans and dark walking shoes.
Anyone who knows Iain, or anyone who saw a man matching his description in the city centre area or near the River Tay on Monday night, is asked to contact Police Scotland on 101.