CANTON, Ohio (WJW) — Classes at McKinley Senior High School were canceled Friday, Sept. 22, after custodians discovered fleas in some classrooms.

Students are expected to return Monday.

The school was closed after the discovery, according to a statement from Canton City Schools Superintendent Jeff Talbert. The fleas “seemed to be confined to a few classrooms,” it reads.

The school district has arranged for professional exterminators, who were given access to the building all day Friday and over the weekend “to ensure a comprehensive and effective treatment,” the statement reads.

Exterminators inspected the building Friday and though they found a few fleas, they determined there wasn’t an infestation, according to a Friday update from Talbert. The exterminators’ work will be done by the end of Friday, but the building will be cleaned thoroughly Saturday and Sunday, he wrote.

“The safety and well-being of our students and staff remain our utmost priority, and we want to assure you that all necessary steps have been taken to create a clean and safe learning environment,” Talbert wrote. “We are confident that McKinley High School will be prepared to resume regular activities on Monday.”

After-school activities scheduled for Friday that aren’t at the high school are expected to continue as scheduled, Talbert said.