There is an increased police presence at Manchester High School Friday after a graffiti threat was found in two of the boys' bathroom, according to school officials.
According to Manchester Public Schools spokesman Jim Farrell, the threat mentioned a bomb at the high school on Friday. Police were immediately called and the investigation is ongoing.
Administrators searched backpacks and bags as students entered the building.
Police said the threat was not credible, but they are taking it seriously and looking for the person responsible.