A woman was airlifted to Ninewells Hospital in Dundee after a car crashed into a tree on a country road.
Two other casualties were taken to the hospital by road following the collision shortly before 1.30pm today.
Police, the fire service, paramedics and the Scottish Charity Air Ambulance were called to the road between St Madoes and Errol, in the Carse of Gowrie.
A blue Subaru was the vehicle involved.
Firefighters had to free the woman passenger from the car. Her condition and the severity of her injuries is not yet clear.
A spokeswoman for the Scottish Ambulance Service said: “We received a call at 1.27pm hours today to attend a road traffic collision.
“We dispatched three ambulances, the Tayside Trauma team and our Helimed air ambulance to the scene.
“Two patients were transferred by road and one patient was airlifted to Ninewells Hospital.”
One car is believed to have been involved and a female passenger had to be rescued by firefighters.
The vehicle struck a tree and had three occupants.
No one is said to have sustained serious injuries and the air ambulance was flown in as a precaution.
The road has been closed by police and diversions are in place.
A Scottish Fire and Rescue Service spokeswoman said: “We attended a road traffic collision involving a car.
“One casualty had to be released from a vehicle and is currently being assisted by the Scottish Ambulance Service.
“Three appliances arrived to assist at 1.50pm and are still currently in attendance.”
A Police Scotland spokesman added: “We have attended along with other emergency services at a one-vehicle road traffic collision on an unclassified road between St Madoes and Errol.
“The road is currently closed and may be so for some time to allow recovery of the car.”
A previous version of this article stated that a female driver was airlifted to hospital. We are happy to clarify that it was indeed a female passenger.