Three seniors have been arrested after a prank at a school in San Antonio drew hundreds of students and left a teacher hurt.
Northside Independent School District spokesman Pascual Gonzalez says one student was arrested on suspicion of assaulting a public servant after a teacher's finger was broken. Two others face charges of interfering with police during last week's incident at Brandeis High School.
Gonzalez has declined to release the names of the seniors, who've been suspended and could be barred from walking through Saturday's graduation ceremony.
Gonzalez on Wednesday described how several hundred students gathered near the cafeteria, chanted the word "seniors" and became unruly, tossing beach balls and initially refusing to return to classes.
Some students shot cellphone video of the mass gathering and posted it online.