Fire at St. Petersburg High School

 ST. PETERSBURG, Fla. (AP) _ Classes have been cancelled at St. Petersburg High School after a fire broke out in the auditorium.
 
 Flames were shooting through the roof of the three-story auditorium when St. Petersburg Fire Rescue crews arrived around 4 a.m. Friday.
 
 The Tampa Bay Times (http://bit.ly/SYRgbv ) reports crews quickly called for backup and cut off power to the school.
 
There was no word on what caused the fire.
 
An investigation continues.