LAYTONSVILLE, Md. (WUSA9) -- Investigators are trying to figure out what caused an early morning house fire in Montgomery County.

The fire broke out at approximately 2:30 a.m. Monday in the 6400 block of Route 108/Olney Laytonsville Road. Seventy five firefighters responded to the scene, according to Montgomery County fire spokesperson Pete Piringer. They were able to extinguish the bulk of the fire.

Piringer says that there was a "significant structural collapse" while firefighters battled the blaze. The house was destroyed. Authorities estimate a total of $425,000 worth of damage, says Piringer.

No one was home at the time of the fire.

The cause of the fire remains under investigation.

There was a lot of fire and police activity in the Laytonsville-Gaithersburg area on Monday morning. There were several crashes not too far from the house fire: Multiple crashes in Laytonsville, Gaithersburg area