WWII-era super bazooka rocket shell found in Grays Harbor County, WA

GRAYS HARBOR COUNTY, Wash. - Authorities in Grays Harbor County closed roads Thursday after a World War II-era rocket for a super bazooka was found in the county.

What we know:

Grays Harbor County sheriff’s deputies were called to a report of a possible explosive device near Simmons Road and Monte Brady Road. 

Deputies, along with personnel from the Grays Harbor County Roads and the Washington State Department of Transportation, quickly established a safety perimeter and closed nearby roads.

After examining the device, authorities determined it was an inert piece of ammunition from a WWII-era super bazooka.

The Washington State Patrol Bomb Squad and the U.S. Army Explosive Ordnance Disposal (EOD) team also responded to the scene to assist. It is not yet known how the device got there.

"We want to thank the public for their patience during this incident and remind everyone," deputies said. 

Authorities are reminding people if anyone comes across any suspicious objects that could be dangerous, they should not touch or move it, and call law enforcement immediately. 

MORE NEWS FROM FOX 13 SEATTLE

Massive WA drug, gun trafficking group busted, 10 arrested

4 pm sunsets to return to Seattle. Here's when

ID killer Bryan Kohberger gets money while claiming he can't pay victims: prosecutors

On a hot streak: FOX 13's Aaron Levine wins 3rd straight Jeopardy episode

Family files lawsuit against Seattle following teen's death at Gas Works Park

US Navy aircraft crash in South China Sea; USS Nimitz returns to WA

Washington food banks see more traffic as SNAP benefits set to end

Seattle groups gear up to help Jamaica after Hurricane Melissa

To get the best local news, weather and sports in Seattle for free, sign up for the daily FOX Seattle Newsletter.

Download the free FOX LOCAL app for mobile in the Apple App Store or Google Play Store for live Seattle news, top stories, weather updates and more local and national news.