Student Accused Of Starting Fire At School With Molotov Cocktail

A 17-year-old boy was arrested on suspicion of starting Monrovia High School on fire with a Molotov cocktail.

The fire broke out at Monrovia High School, located at 845 W. Colorado Blvd. in Monrovia, Monday morning after midnight, CBS LA reporters. Investigators say there was "severe" damage—about $500,000 to $1 million worth—done to the counseling and admin offices in the area where the fire occurred. School officials decided to go ahead with school today, despite the damage.

A 17-year-old boy was arrested on suspicion of arson after he was found hiding near the scene, the L.A. Times reports. Witnesses said they saw the boy throw an object through the window, causing the blaze. Authorities say the boy—whose identity is not being released because he is a minor—acted alone, and they're not sure why he allegedly started the fire. ABC 7 reports that he was a student at the school.