Coastguard Rescue Officers from Swanage and St Albans were tasked along with Dorset Police Officers and the Ambulance Service.
A local woman aged in her 50's was airlifted from the cliffs by the Coastguard helicopter and taken to King George's field where she was treated by Paramedics. She sustained very serious head and chest injuries and was airlifted to Southampton General Hospital by the air ambulance.
Rescue 106 from Portland lowers a winchman to the base of cliffs in front of the National Coastwatch lookout.
We would also like to confirm that despite local social media reports the incident did not involve a child.