Police Investigate Arson at Roxbury Elementary School

and Fire Department officials are investigating a fire at .

Sometime overnight on July 27, someone came onto the school property and lit a fire near the doors leading to the school playground.

Investigators came to the school after a maintenance man found a large burn mark on the ground outside the door and more burn evidence on the wall of the school.

Written in chalk near the burn mark is the word "Ronnie" or "Ronnae."

Police and fire officials are investigating.