ANNAPOLIS, Md. (WJZ) –  Anne Arundel County police broke up a major fight inside Annapolis High School and arrested seven students.

Derek Valcourt has more on what went down Monday.

It started with two girls. No weapons were used, but one of them threw a chair–and it was all over something posted online.

Classes had not yet started for the day when a fight broke out just after 7 a.m. inside the busy Annapolis High School cafeteria. By day’s end, everyone at school knew about it.

“I heard a fight started over Facebook and someone threw a chair and then it got real right after that,” said student Nash Whitaker.

“I just saw a whole bunch of cop cars pull up and I saw a whole bunch of cops run into the building,” said student Alex Cabrera.

Police say a 15-year-old girl got into an argument with 18-year-old Lakyra Reid. By the time the school resource officer arrived, the fight had escalated and a huge crowd gathered to watch it.

“That school resource officer called this in and responded, called for assistance due to the large crowd, several hundred students prior to school in the cafeteria area. We had a quick response and got that situation under control relatively quickly,” said Justin Mulcahy, Anne Arundel County Police.