Snohomish High School was placed under lockdown Wednesday after a suspicious individual reportedly approached the school’s campus, according to the Snohomish School District.
The school was put into lockdown at about 2:45 p.m.
The lockdown was lifted by law enforcement at about 4:35 p.m.
All student and staff who were on campus during the lockdown are safe and have been released, according to the Snohomish School District.
Deputies with the Snohomish County Sheriff’s Office responded to the school after a resident in the area reportedly saw a group of three people, one of whom appeared to have a firearm, walking near the campus.
Police say surveillance video from the school showed the group walking through, then exiting the campus.
Law enforcement personnel remain at the campus as of 4 p.m. and are actively investigating this incident.
There is no known active threat to the public, according to the Snohomish Police Department.