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Climate change protesters and police in violent clashes
A police officer has been airlifted to hospital after being hurt during violent scuffles with activists at Ratcliffe-on-Soar power station in Nottinghamshire.
Witnesses said one protester was also treated by ambulance crews at the site following a volatile stand-off with authorities.
A total of 21 people have been arrested after sections of the fence surrounding the station were torn down by protesters.
The violence broke out as lines of police attempted to push back the activists outside the fence.
Muray Smith, a spokesman for Camp for Climate Action, one of the groups that organized the demonstration, said: "Protesters pulled down two sections of fence and police are trying to restrict them getting through and are trying to move people back."
Some activists managed to enter the site and were arrested, he added.