HOLLIS - Hollis/Brookline High School students were evacuated for about 30 minutes Thursday morning after an written bomb threat was discovered.
References to a bomb in the school were scribbled in pencil on a bathroom wall along with some graffiti, according to Lt. Richard Mello of the Hollis police.
Several hundred students were evacuated while police and fire personnel swept the school looking for anything suspicious. Nothing was found, and people allowed back into the building.
The investigation into the threat is continuing.