MILWAUKEE (CBS 58) -- According to a Facebook post from Milwaukee Public Schools, in-person classes are canceled for South Division High School. Students will have classes virtually on Thursday, Feb. 10. 

According to MPS, South Division High School staff received a call about a potential threat at the school building early Wednesday, Feb. 9. 

Police were contacted and the school was quickly put on lockdown to ensure students remained safe. 

Milwaukee police secured the campus and the school was deemed safe. 

Classes resumed as scheduled and students were dismissed at the end of the school day.

Thursday, classes were virtual. 

Friday, Feb. 11, classes will resume as scheduled in person. 

Milwaukee police identified a person of interest in the investigation.