MEDFORD, WI (WTAQ) - Schools in Medford are open Friday, but with a stronger police presence after a threat was made at the high school Thursday.

School official Joseph Greget said on Facebook, “a specific threat to the safety of our students and staff was discovered in a girls’ bathroom.” Police and sheriff’s officials would not elaborate.

Medford school officials said backpacks and coats will be checked for everyone entering the high school Friday, and classes will continue with a strong police presence throughout the day.

Parents were given the option of keeping their children home without penalty.