Four Ramapo, N.Y., high school teens have been arrested following a fight in which a security guard was beaten and knocked to the ground.
The students were arraigned on a third-degree assault charge.
Three of them were released into the custody of their parents on $100 bail.
Police say the fourth student had an outstanding arrest warrant. Her bail was set at $500 each for the warrant and assault charge.
The arrests were the latest in a string of violent brawls at the high school since early February.