An eighth-grade student at the Pittsburgh Science and Technology Academy was arrested today after a fire was set in a second-floor boys restroom.

The fire involved an aerosol can that was lit with an accelerant, said school district spokeswoman Ebony Pugh. The can had exploded and was found in two pieces near the restroom toilets. No one was injured. A toilet was damaged, and a backpack in the restroom caught on fire.

The fire was discovered about 8 a.m. today, and a staff member pulled the fire alarm, Ms. Pugh said. Students were evacuated and returned to classes about 10:20 a.m.

City firefighters and the arson squad were called to the scene.

The student was taken to Shuman Center.

The school, which is in the former Frick building in Oakland, is in its first year and is phasing in grade levels. It currently has students in grades 6 through 9.

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