Six children have been taken to hospital and 13 others were treated for minor injuries after a bus with school pupils on board toppled over, police said.
The double-decker bus toppled over at 3.52pm in Aberdeenshire where it had been travelling along the A92 Gavrock Road near Laurencekirk.
One child was taken to Ninewells Hospital in Dundee and five children were taken to Aberdeen Royal Infirmary, police said.
A spokesman for Grampian Police said: "The children taken to hospital are suffering from back and shoulder injuries. Thirteen other children are being treated for minor injuries."
The pupils are boys and girls aged between 12 and 17. All of the injuries are believed to be minor but the youngsters have been taken to hospital as a precaution.
An investigation is under way into the cause of the accident. The weather, including heavy rain and wind, is believed to have been a contributory factor.
A spokeswoman for Aberdeenshire Council said around 34 pupils were on the bus at the time. The council said concerns had been raised by parents about the use of double-decker buses on the route. Assessments, which had been carried out, and arrangements agreed with the bus operator will be reviewed, the council said.
Inspector Ian Kirkwood from Grampian Police, who was at the scene, said: "This had the potential to be a serious incident, but thankfully all the emergency services have worked well together with the assistance of Mearns Academy and it would appear that none of the children have serious injuries as a result of this incident."
In a statement, a spokesman for bus operator Stagecoach, said: "Around 30 pupils were on the bus at the time of the accident and police and emergency services attended the scene. No-one was seriously injured, however we understand six children were taken to hospital as a precaution with minor injuries. Our immediate thoughts and concern are for those pupils, as well as their families."
He continued: "It would be inappropriate to speculate at this stage about the cause of the accident. However, our clear policy is that we never put any vehicle on the road unless we believe it is safe to do so."