STRONGSVILLE, Ohio -- Classes were cancelled Monday at Strongsville High School after a reported bomb threat.

Strongsville police said the threat was made by a graffiti message and was specific to Strongsville High School.

Police arrived on scene at about 7:15 a.m. and have not found anything suspicious.

Classes were also cancelled at the city's seven elementary schools, because buses that would have been used to pick up the elementary students were being used to return high school students to their homes, police said.

Classes at Center and Albion middle schools were not cancelled.

Parents needing to pick up students can do so at the upper student lot.