A high school in Westchester put emergency procedures into effect after a bomb threat was made against the school Monday.

Police say a girl found a message about a bomb in one of the bathrooms at Edgemont High School around 8:30 a.m. 

Police, fire crews and the Westchester County bomb squad investigated the campus and cleared the scene around 11 a.m. The students were put in the gymnasium during the investigation.

No injuries were reported.

Students later resumed their school day.