PARMA -- Smoke is thought to have originated in the science lab at Valley Forge High School about 3:30 p.m. Monday because of smoke that poured out from the lab.
The incident will likely not delay the first day of school Tuesday.
The Parma City School District learned late Monday afternoon that a smoke detection alarm went off at Valley Forge High School.
Fire crews from the City of Parma Heights were immediately sent to the school. School is not yet in session and no students were in danger.
The smoke appears to have originated from a science lab in the building. The cause of the smoke is still being investigated by the district's saefety and security teams and Superintendent Dr. Jeffry M. Graham.
School officials have remotely shut off the building's air flow system to ensure the smoke does not spread through the building.
The exact cause of the smoke is still under investigation.
"I am thankful for the support of the City of Parma Heights and its fire crews for working closely with us to ensure the safety and security of our schools," Graham said.
"As soon as we are able to uncover the cause of the smoke, we will alert the public and our media partners."