Richmond Hill High School is apparently on lockdown as of 10:30 a.m. Friday.

According to officials, a bomb threat was called in to the school around 10 a.m. State and local law enforcement are at the school checking for a bomb, and no one is allowed on or off the campus during that time. 

A member of the school staff said earlier that all students are safe. 

Check back here for more details as the story develops.