VALLEJO (KRON) — A big fight at Vallejo High School last Friday has is raising new concerns about safety.

Cell phone video from a student caught the massive brawl on video. The person who took the video tells KRON 4 that upwards of 50 students were involved in the fight.

Monday, school site safety officials made their presence known, some standing on campus, others driving around in golf carts.

KRON 4 tried to talk to the person identified as the school principal, but she refused to answer any questions.

DR. Alana Shackelford, the Director of Community Engagement for the school district, refused an on-camera interview, but said that the fight involved about 20-25 students. She said that some students were bit, but was not sure of the extent of contact. Shackelford said that no ambulances were called as a result of the fight.

Police were called, but no arrests were made.

Shackelford said that the students involved were disciplined, but would not elaborate.

Also on Friday, the school was placed on lock-down twice. Once, after an employee thought he saw a weapon flashed in a car driving by the school and then again after gunshots were heard. Shackelford said that she doesn’t think these incidents were related to the fight.

She said that security has a heightened awareness after the fight, but that the district encourages students to talk to staff about any safety concerns.