A major incident has been declared with several casualties after an explosion at Didcot power station in Oxfordshire, South Central Ambulance Service said.
Thames Valley Police confirmed that officers are at the scene, along with emergency services, after a major explosion which has caused part of a building to collapse.
At least three ambulances, ambulance helicopter and several rapid response vehicles are at Didcot Power Station in Oxfordshire following the accident.
Twitter users described seeing an ‘explosion’ and ‘loads of dust’ at the plant.
Npower has said that it is investigating.