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.
There are no air quality problems at the site of the Didcot Power Station collapse, according to environmental health officers.
Dust rose into the air following the collapse of much of the building on Tuesday afternoon, which was caught on video by witnesses.
It was later confirmed that there were no hazardous materials on site, but residents living nearby were told to keep doors and windows closed.
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.