Firefighters responded to a reported garage fire at this house in the 4600 block of Woodridge Drive, early Monday morning, Feb. 15, 2016.

Investigators on Tuesday declared an early Monday morning house fire in western Lawrence to be accidental.

The fire is believed to have been started by an unattended heating device.

At 1:47 a.m. Monday, firefighters responded to a two-story home on fire at 4612 Woodridge Drive, said Lawrence-Douglas County Fire Medical Division Chief Eve Tolefree. Heavy flames were reported in a garage and attic area attached to the home and a second-alarm response was requested.

The flames were extinguished by 2:30 a.m. Tolefree said. No injuries were reported in the incident.

Damages to the home are estimated to be around $110,000, Tolefree said.