OKLAHOMA CITY (AP) - Authorities say fires that broke out early Monday at a vacant Oklahoma City elementary school were intentionally set.

The Oklahoma City Fire Department says the fires were reported shortly after 3 a.m. at the former Dunbar Elementary School. Battalion Chief Tony Davis tells Oklahoma City television station KWTV (http://bit.ly/1WnaULv ) that firefighters found two fires burning at the school: one on the roof and one on the first floor. 

Davis says the incident is similar to a fire that was reported about six weeks ago at Dunbar Elementary.

The school was closed in 2010 because of low enrollment.