SPOKANE, Wash. - Fire investigators determined Friday morning that the fire that destroyed the library at Sacajawea Middle School on the South Hill was intentionally set.

Investigators sifted the charred books after the fire was put out and found traces of some sort of flammable liquid in several places around the library. They say it appears someone broke into the school either through a door or a window and set the library ablaze.

Firefighters arrived on the scene around 4 a.m. to see the library engulfed in flames. They were able to stop the fire from spreading, but the library is a total loss. The school district canceled classes at the school - partly so investigators could have full access to the school, and partly because carbon monoxide levels were too high for students' safety.

District officials say attempts have been made in the past to start a fire in the exact same location.

This morning, my school's library was on fire (if you couldn't tell already). It's only been a week of school. How could this happen?

Frustrated