WINN, Maine — Firefighters have an unconfirmed report that one of two occupants of a Phillips Road home destroyed by fire on Tuesday morning is missing, interim Mattawamkeag Fire Chief Michael Coombs said.

Emergency responders had strung yellow boundary tape around almost the entire property of 391 Phillips Road and sent away one of the two occupants, Robert Fogg, to be with relatives, officials said.

Coombs was among the first responders to get to the house shortly after the fire was reported at about 7:30 a.m. When he arrived, the roof was starting to cave in. Within five minutes, the first floor caved into the basement, he said.

Then firefighters “got word that there might be somebody still inside the residence,” Coombs said during a noon press conference at the scene on Tuesday.

The heavy layering of burned debris had as of 12:30 p.m. made it impossible for firefighters to find anyone inside the destroyed structure, Maine state fire marshal’s office Sgt. Timothy York said.

York identified Fogg and his wife, Lisa, as the two homeowners. York said he and other investigators had interviewed Robert Fogg and were awaiting more assistance before starting to sift through the wreckage.

York described both Foggs as being in their 50s. No one has confirmed whether Lisa Fogg is the missing person.

Watch for updates.