The all-clear was given and students returned to classes after a suspicious package was sighted Monday outside Lake Zurich High School, school official Pat Witt said.
Police and fire crews were called to the school at 300 Church St. after the package was spotted near the main entrance of the school as students began arriving at about 7:20 a.m.
Students were directed to the school's cafeteria and told to remain there until police and fire officials had completed their search of the premises.
