A Thorold school was cleared earlier today after police received a report about a possible armed person.
Day camp staff at Our Lady of the Holy Rosary on Collier Road South reported that a child saw a man with a knife in the building at 1:30 p.m.
Police along with the canine unit and emergency task unit responded
Staff onsite secured themselves and the children in a safe place.
Officers cleared the building but didn't find anything suspicious.
The safety measures were lifted at 2:45 p.m.
Police are investigating the validity of the reports