Firefighters are continuing their battle to put out the last of the flames of a massive fire which tore through part of a landmark power station.
The coal-fired Ferrybridge C Power Station has been left partially destroyed after a blaze broke out on the third floor of the building, next to the River Aire in West Yorkshire.
Energy giant SSE, which runs the station, said no one was injured in the blaze, with flames reaching 100ft.
The searing heat caused part of the plant to buckle and sink 30ft.
Firefighters have been working through the night to "dampen down" the last of the flames and burning embers.
Ian Bitcon, area manager of the West Yorkshire Fire Brigade, said last night: "We are at the dampening down stage, so the flames are mainly out but it is not entirely extinguished. We expect there to be crews here right through the night."
He said it might be a few days before the building can cool off and be safe enough to send investigators in.
He said: "It is a big structure and it has become very unstable because of the fire.
"The company will need to demolish the part of the building affected by the fire, but we are still at the stage where there is enough firefighting that is going on that they cannot start that yet."
He said SSE was expected to assess the situation and carry out the demolition over the next few days.