SILVER SPRING, Md. (AP) — Montgomery County authorities are investigating a fire at a school for people with developmental disabilities and Masonic lodge in Silver Spring.

Officials closed a section of University Boulevard near Dennis Avenue on Wednesday morning after the fire at the National Children’s Center. The school shares a building with a Masonic lodge. The area was later reopened to traffic.

Officials say a fire alarm went off about 4 a.m. Wednesday. The fire apparently caused major damage on the second floor of the building. No injuries were reported.

Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.