PORTLAND, Ore. (KOIN) — The Lake Oswego Fire Department has launched an investigation into an explosive fire that took place at an unoccupied home.

Neighbors along Westview Court in Lake Oswego reported hearing explosions just after 1 a.m.

Responding crews discovered two garages attached to each other had caught fire, but the home on the property had not. Two vehicles inside the structure were destroyed, including an RV, according to officials.

Firefighters were able to keep the fire from reaching the home which was unoccupied, though the house did endure minor smoke damage.

Damage is estimated to be around $130,000, according to officials.

No injuries have been reported.

The cause remains under investigation.