One person is dead, three are missing and five are in hospital following a building collapse at Didcot Power Station.
Emergency services declared a "major incident" after being called to the scene in south Oxfordshire at 4pm.
The collapse happened at the former coal-fired Didcot A plant, which closed in 2013 and was in the process of being demolished.
Area manager Mat Carlile, from Thames Valley Fire Control Service, said: "I can confirm search operations are in progress and that there has been one fatality, five persons have been taken to hospital and three persons are currently missing."