Concerns are growing for a teenage girl who was last seen on the banks of the River Tay on Saturday evening.
A Police Scotland helicopter was deployed in the hunt for Kathleen Harkin.
It is understood that it was searching the river area between North Muirton and Perth city centre.
The Scottish Fire and Rescue Service, Tayside Mountain Rescue, Police Scotland Mountain Rescue, Police dogs, SARDA dogs joined the police helicopter during the search.
The 15-year-old, who lives in Murthly, was last seen near Woody Island at 9.30pm on Saturday.
A police spokesman said: “Tayside Division are appealing for information that could help to trace 15-year-old missing person Kathleen Harkin, from Murthly, who was last seen about 9.30pm on Saturday October 8 on the banks of the River Tay, near to Woody Island at North Muirton in Perth.
“Kathleen is described as approximately 5ft in height, medium build, long dark hair, wearing black ripped jeans, a black bomber style jacket and black Nike trainers.”
Area Commander for Perth and Kinross Chief Inspector Maggie Pettigrew said: “We are increasingly worried for the welfare of Kathleen and will continue to focus all our attention overnight on finding Kathleen. We are using specialist resources as it is a difficult and dangerous area to search.
“I would ask that residents in the North Muirton area please check any outbuildings or sheds they may have.
“We are aware of speculation on social media and want to stress that this is very much an ongoing missing person inquiry and any speculation is unhelpful and could cause added stress for Kathleen’s family.
“We ask that anyone with information as to Kathleen’s whereabouts please contact police on 101.”
