Police were called to the school about 10:45 a.m. Tuesday after the man, 18, reportedly touched a classmate inappropriately.
School officials and police were told the man touched a female classmate's shoulder and then tried to touch her breasts. She punched him before he made contact.
The man then allegedly barricaded himself in a classroom by pushing desks against the door.
Police allege he became hostile with them and resisted arrest. He also reportedly kicked a police sergeant in the thigh.
Police found a dagger with four-and-a-half inch blade in the man's backpack.
He was booked into jail for investigation of third-degree and fourth-degree assault, and carrying a weapon on campus.
He also received an emergency expulsion, school district spokeswoman DJ Jakala said.
More Local News Headlines
Contract for Snohomish Co. Jail to take Seattle inmates approved 4:26 p.m. Voters overwhelmingly chose Sultan's newest councilman, 21 Woman struck by car on Highway 99 in Edmonds 3:40 p.m. Hearing set on car allowances for Snohomish County officials Burn ban lifted in Snohomish County — except Darrington Mukilteo School District ponders change as enrollment continues to surge Monroe High's Cameron Lee wants to pursue theater, music interests Community Calendar
Our new comment system is not supported in IE 7. Please upgrade your browser here.