UPDATE: Resident, Dog Killed In Early Morning House Fire In Livermore

LIVERMORE (CBS SF) -- A fire swept through a house in Livermore Friday morning and claimed the lives of a resident and a pet dog, fire officials said.

Livermore-Pleasanton Fire Department said firefighters responded at around 5:09 a.m. to a single-family detached home on the corner of Westminster Way at Lambeth Rd. near Vista Meadows Park. They found a large fire in the garage that had extended into the home.

Firefighters found a male resident inside the home and brought him outside where medics began life-saving measures. Despite the efforts, the man was pronounced dead at the scene, the fire department said.

A dog was also found deceased inside the home. No other occupants were reported or found inside the home.

The fire was brought under control within about 30 minutes. There were no injuries to firefighters.

The fire caused significant damage to the house, with initial loss estimate of $400,000, the fire department said.

There was no immediate word of what caused the fire.

The Livermore Police Department was working with the Livermore-Pleasanton Fire Department in investigating the cause of the fire.