Firefighters searching the Warwickshire vegetable packhouse burnt down over the weekend have found a body.
Glen Ranger, deputy chief fire officer for Warwickshire, said he is certain the search team has found one of the firefighters who died fighting the fire at Wealmoor Atherstone.
The search will continue until all of the missing firefighters are accounted for, but fire crews have been ordered to vacate the premises that are on the verge of collapse.
The building is reportedly structurally unsafe, with monitoring equipment in place around it to check for movements. A steel girder fell during the search on Monday.
Ian Reid, 44, died in hospital after being pulled from the burning packhouse on Friday night. The missing men are Darren Yates-Badley, Ashley Stephens and John Averis.
The identity of the body found today has not been confirmed.
Ranger added that fire crews have ventured about 20 to 30 metres inside the building. He said he has been "astounded by the commitment" shown by crews at the site and said he had been approached by "endless crews asking to stay on site" to take part in the rescue and retrieval operation.
