Police arrested a Bonney Lake High School student Wednesday and booked her into Remann Hall for suspicion of making a fake bomb threat at the school.
Officials evacuated the school for about 90 minutes Tuesday after the threat was found in a note, Bonney Lake police spokesman Todd Green said.
Witnesses have come forward since then, and combined with evidence from the note itself, Green said police identified the girl as a suspect.
She was arrested at her home.
Because she is a juvenile, Green declined to give her age or further details about the suspect.