Two people were found dead after a residential fire that occurred Nov. 3 at the 16500 block of 146 Avenue Southeast in Renton.

The initial 911 call was placed around 2:59 p.m. by a neighbor, who reported an elderly man lived at the house and that his truck was parked in the garage. Renton Regional Fire Authority reached the scene six minutes later.

Battalion Chief Robert Homan said the house was engulfed with flames. It took RRFA about 1 hour and 15 minutes to get the fire under control.

Firefighters found a dead body outside, near the back of the house. Investigators were unable to search the interior of the house due to the dangerous conditions.

According to the King County Medical Examiner’s Office, the man had been dead for quite some time, possibly months.

Fire investigators returned to the house Tuesday and found another body of a man in a bedroom, according to a King County Sheriff’s Office press release. The medical examiner has not yet determined the cause and manner of the man’s death.

According to the release, a 68-year-old man lived in the house and his 65-year-old brother lived with him in the past but disappeared sometime in 2015. The release also said investigators believe the man found in the backyard was the younger brother.

Investigators determined the fire originated in the bedroom where the second body was found. The fire has been determined to be accidental.

Investigators said initial observations of the body found in the backyard did not indicate foul play however waiting to know the cause and manner of death before making a final determination, according to the release. A missing person report had not been filed on the missing man.