A bomb threat prompted an evacuation and early dismissal at a high school in Montgomery County on Monday.

Souderton Area High School officials said a suspicious message was found written inside a bathroom around 10 a.m.

Police and K-9 unit responded and conducted a search of the building, located at 625 Lower Rd. in Souderton.

Students were evacuated and then sent home early at 12:30 p.m.

"The safety of our students is our number one priority, and in Souderton, we taken these threats seriously. We apologize for any inconvenience," said Frank Gallagher, the district's superintendent, in a note sent home to parents.

Police have not said whether anything was found or who was behind the threat.