Hamilton police have made an arrest in connection with a threat to Bishop Tonnos Secondary School.

Officers were present at the school on June 3 after a note warning of a school shooting that day was found written on the wall of a bathroom stall.

Police say a 15-year-old girl has been arrested in relation to the note and charged with mischief under $5,000. It also says it continues to investigate a series of threats that have been written at multiple schools in the city.

Anyone with information is asked to contact police at 905-546-4925.