An investigation is underway and a hold and secure is in place at Holy Family School.

The measures were taken after it was discovered hateful graffiti had been written on portable doors at the school according to the Thunder Bay Catholic District School Board.

The hold and secure is being done as a precautionary measure and a police presence will be on site throughout the day.

This marks the 3rd incident this week where schools within the TBCDSB have been targeted.

More details are expected to be released by the Board as they become available.