UPDATED 1:50 P.M.: Ansonia police have confirmed that no suspicious items were found following a search of Emmett O\u2019Brien Technical High School Monday. A bomb threat had forced the school\u2019s evacuation. According to Lt. Andrew Cota, Principal Laurie LeBouthillier called police after school personnel reported that someone had written the words, \u201cThere is a bomb in this school,\u201d on a first floor hallway wall. The school was evacuated as a precaution. State police and regional emergency teams conducted a sweep of the school and found nothing suspicious, Cota said. There were no other threats and no further threats have been received. The incident remains under investigation. Original story follows below. Students told, 'Evacuate the building' 1 P.M.: A bomb threat emptied Emmett O\u2019Brien Technical High School in Ansonia Monday. Principal Laurie LeBouthillier said the students were sent home as a precaution and that classes would resume Tuesday. Students told the Valley Gazette that they learned of the situation when they heard an announcement about 11:20 a.m. that said simply, \u201cEvacuate the building.\u201d \u201cWe went outside like it was a normal fire drill, then a few minutes later they said the buses were coming to pick us up and that students who drive to school could go home,\u201d a student said as he looked around for friends to get a ride home. \u201cMy car keys are inside and they won\u2019t let me back inside to get them.\u201d The threat was reportedly scrawled in red marker on one of the school\u2019s walls. The writer claimed to have a bomb and school officials made the decision to evacuate. \u201cIt was a precaution,\u201d LeBouthillier said. Though Ansonia and state police were still checking the building, LeBouthillier said she was confident school would be open Tuesday. \u201cEverything appears to be OK,\u201d she said. More information when available at ValleyGazette.com. The Valley Gazette, like the Shelton Herald, is produced by Hersam Acorn Newspapers.