A custodian at Ossining High School found a swastika drawn with pencil on the bathroom wall, News 12 is told.

According to the superintendent, the bathroom was immediately closed off from students and the wall scrubbed clean.

"We haven't seen a pattern of this taking place over the course of this year or last year. It seems to be an isolated situation, but one we're taking very, very seriously,” says Ossining Superintendent Raymond Sanchez.

Anyone with information to contribute to the investigation is asked to call Ossining police.