This story has been updated.

UPDATE, 2:37 p.m. EDT: The Snohomish County Sheriff's Office tweeted the suspect has been arrested.


Original story below.

Authorities in Snohomish County, Washington, searched Sunday for a man who broke into the county courthouse with a knife and crowbar. The Everett courthouse was evacuated shortly after 9 a.m. PDT when employees spotted the intruder, a Sheriff's Office news release said, and the man was believed to still be nearby as of Sunday at 11 a.m. PDT.

In a tweet, the Sheriff's Office called it a "very dynamic situation." There was one injury reported by a courthouse employee who hurt herself as she left the building.

Spokeswoman Shari Ireton told the Associated Press she didn't know how many people were inside the courthouse when the suspect was. The building is closed on weekends, but employees are typically there around the clock.

Police were looking for a 5-foot-9 white male with short blond hair and a tattoo under his eye. He was dressed in a white shirt and blue nylon pants. 

"Multiple law enforcement agencies were on-scene and the public is asked to avoid the area," Snohomish County Sheriff's spokeswoman Lt. Kathi Lang wrote in a news release on the county's website.

Snohomish County, which begins about 12 miles from Seattle, is the third largest county in Washington. It has about 715,000 people. Its largest city is Everett, followed by Marysville where last October freshman Jaylen Fryberg killed four students and himself when he opened fire at Marysville Pilchuck High School.

Snohomish County is also home to the Boeing Everett Factory, where the 747, 767, 777 and 787 planes get assembled, according to its website. The factory is the largest building in the world by volume at 472,370,319 cubic feet.