Seven northern New Jersey high school students face numerous charges for what authorities say was a senior prank "that went wrong.''
Denville police say the students -- all boys, whose names were not released because they're juveniles -- were placing rabbits, mice, roosters and chickens inside ceilings at Morris Knolls High School when they were caught this week.
Officers went there shortly before midnight Tuesday after a custodian reported seeing people inside the building. Three students were arrested there, and the other four were taken into custody over the next few hours.
They now face various charges including burglary, criminal mischief and conspiracy. And authorities said Saturday that animal cruelty charges are pending because at least one of the animals was injured after falling through the ceiling.