Havre de Grace Middle School students were dismissed early Friday due to a power outage, Harford County Public Schools spokeswoman Teri Kranefeld told Patch.
The power outage was caused by a mechanical failure, Kranefeld said.
Students were released from the middle school at 9:15 a.m., the school system posted on Twitter.
Holiday vacation for Harford County Public Schools students starts Dec. 24 and lasts until Jan. 2.
Stay with Patch for updates.