Texarkana Police say a 14 year-old boy was arrested Wednesday and booked into the Juvenile Detention Center.
Two other boys, 14 and 15, were taken into custody Tuesday for an incident that happened on Jan. 15 at Arkansas High School. They are also being held in the Juvenile Detention Center.
Police say the students are accused of sexually assaulting a girl in a classroom during school hours.
Investigators say no further arrests are expected at this time.