Six hurt after crashes at Llanbrynmair and Llansantffraid-ym-mechain
Two main roads in Powys were closed after separate crashes on Friday.
A woman in her 30s was cut free and flown to hospital with serious injuries after a crash on the A470 between two cars and a lorry.
Two children and an adult were also hurt after the crash near Llanbrynmair at 15:30 GMT.
Meanwhile, three people were trapped in a car, left in a "precarious" position above an embankment on the A495 near Llansantffraid-ym-mechain.
The road reopened four hours after the crash involving two cars at 15:00 GMT.
The driver of the second vehicle was uninjured.
Mid and West Wales Fire and Rescue Service said the incident happened near the Bryn Vyrnwy caravan park.
The Wales Air Ambulance said it helped stabilise two women at the scene before they were taken by road to hospital in Shrewsbury.
In the later incident, the seriously injured woman was airlifted to hospital in Bangor.
A total of four ambulances and the air ambulance were involved in that rescue operation.
Firefighters from Machynlleth and Newtown were at the scene and the A470 reopened just before midnight.