At 6:11 p.m. Monday, firefighters were dispatched to a fast-moving fire in a dry grass field near Southwest 229th Avenue and Southwest Rosedale Road in Washington County.

First-arriving crews immediately worked to surround the fire that was quickly moving toward homes and outbuildings. Firefighters shuttled water with water tenders and stretched hose lines to protect all structures. Nearby landowners were prepared to use dozers to create a firebreak, but firefighters were able to extinguish the fire and protect all structures within 45 minutes. They spent additional time mopping up and spraying water to prevent hot spots from starting new fires. There were no injuries to residents, firefighters, or animals.

Based on witness interviews and burn patterns, a Tualatin Valley Fire & Rescue fire investigator determined the fire was intentionally set and may be fireworks related. The Washington Country Sheriff's Office will continue investigating.

Due to the location of the fire, multiple agencies responded to the scene. TVF&R was assisted by Hillsboro Fire & Rescue, Cornelius Fire Department, Washington County Sheriffs Office, and Washington County Consolidated Communications Agency (911 dispatch).