Fenwick High School students were given the "all clear" to return to campus after being forced to evacuate the building Monday morning following a bomb threat, according the school.
Oak Park police contacted the suburban high school Monday morning about a bomb threat, which caused officials to implement its crisis protocols, Fenwick Principal Peter Groom said in a statement.
Students were evacuated from the school "until a thorough investigation" occurred, Groom said.
According to an update, students were returning from nearby Ascension Church where they gathered during the search.
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"All students, faculty and staff are currently safe and away from the building, and there is no immediate threat to their wellbeing," the statement said earlier in the day.