The Monroe County Sheriff's Office says classes have resumed at Honeoye Falls-Lima High School following a bomb threat on Tuesday.

According to a post on the school's website, the threat was found written on a bathroom wall around 9:45 Tuesday morning. The school was immediately put into lockdown and 911 was called.

A short time later the lockdown was changed to hold-in-place, keeping students in their classrooms but not allowing anyone in the hallways.

After an investigation using a K9, deputies determined there was no bomb in the building. The sheriff's office is continuing to investigate the threat.