Three crews attended (two from High Wycombe, one from Beaconsfield).
Firefighters were called to a road traffic collision involving 5 cars and a van.
Firefighters released one male and one female who were then passed into the care of South Central Ambulance Service. Seven other individuals were out of the vehicles, uninjured, on arrival. Two lanes of the motorway were closed to make the area safe.
Thames Valley Police and National Highways also attended.