DENVER (AP) — Authorities say they recovered a body from the rubble of a suburban Denver house that was leveled by an unexplained explosion.

Officials said the body was found Friday morning. They didn't immediately say whether it was the man reported missing after the explosion.

The house in the north Denver suburb of Thornton exploded Thursday. City spokeswoman Lisa Wilson says investigators are looking into whether natural gas was the cause.

Debris clung to surrounding trees and rooftops and was scattered across two square blocks.

Wilson says three people lived in the house and two were at work at the time of the explosion.

Wilson says those two told investigators the third person was probably in the home because his truck and motorcycle were there.

No names have been released.