"We contained and evacuated the area," Snohomish County Sheriff's Office spokeswoman Shari Ireton said.
A Washington State Patrol bomb squad, which includes law officers from several local police agencies, removed the bottle and took it to the Boom City parking lot behind the casino.
It was unclear what was in the bottle, Ireton said.
The bottle and its contents were destroyed with a chemical explosive, Ireton said.
More Local News Headlines
Voters overwhelmingly chose Sultan’s newest councilman, 21 Hearing set on car allowances for Snohomish County officials Burn ban lifted in Snohomish County — except Darrington 11:51 a.m. Mukilteo School District ponders change as enrollment continues to surge Monroe High's Cameron Lee wants to pursue theater, music interests Front Porch: Convent holds Christmas festival in Stanwood Community Calendar school winners
Our new comment system is not supported in IE 7. Please upgrade your browser here.