Fire crews had to remove part of the roof of a house to rescue a man who was impaled on a metal table leg in his loft.
Ambulance crews were called to the house in St Albans just after 6pm on Saturday, East of England Ambulance Service said.
The man was brought out of the section of roof by firefighters with the metal table leg still attached and taken to St Mary's Paddington Hospital in London.
An ambulance service spokesman said: "This was a very delicate incident to deal with and our crews, a critical care paramedic and Hart operatives worked extremely hard alongside the fire service in a very difficult environment to treat, stabilise and immobilise him before he was removed out of the roof to an awaiting ambulance.
"Due to the confined space, the fire service removed a section of the roof so the patient could be passed through onto their aerial ladder which brought him down to ground level."
