It is "highly unlikely" that three people still missing in the rubble of the Didcot Power Station collapse are still alive, officials have said.
The search has been hampered by the "unstable" section still standing, they added.
The station closed in 2013 and was in the process of being demolished when it collapsed yesterday, killing one and injuring five.
One person has died following an incident at Didcot Power Station this afternoon, according to a spokesman for Oxfordshire County Council.
Rodney Rose, the council's deputy leader, told the Oxford Mail: "I have been told there has been one fatality, but the rest is currently unknown.
"The fire service is there now and we are still trying to find out if this was a demolition."
Mr Rose, who sits on a committee responsible for Thames Valley Fire Service, added: "At the moment this is being treated as a collapsed building, not an explosion, but there was a bang."
Frustrated families of those missing since the power station collapse two weeks ago say they are heartbroken that rescue work has halted.
A biker group in the North East has paid tribute to 'Whitby' Mick Collings, who is thought to have died in the power station collapse.
One person has died and three others are still missing after a building collapsed at Didcot Power Station yesterday.