Firefighters are battling a "well developed" blaze at a former Lanarkshire hospital.
Crews were called to the site of the old Hartwood Hospital, near Shotts, North Lanarkshire, at around 4.30pm on Sunday.
Seven fire engines are attending the scene but have been unable to enter the derelict building due to safety concerns.
No one has been injured in the fire.
A spokesman for the Scottish Fire and Rescue Service (SFRS) said: "Firefighters arrived to find a well developed fire within a large derelict building.
"Firefighters were unable to conduct internal firefighting operations due to the unsafe condition of the building. Crews are conducting external firefighting operations using an aerial rescue pump and main jets.
"There are no reports of injuries and Police Scotland officers are in attendance to control traffic."
The former psychiatric hospital closed in the late 1990s.
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