A brief hold and secure was issued for Riverside Public School in Elmira on Friday morning.
The Waterloo Region District School Board tweeting it's now been lifted, and was just in place as a precaution due to nearby police activity.
Regional Police confirm to 570 NEWS they were in the area in connection with a suspicious person investigation - but they've since left the scene.
Staff and students at the school are all safe, and no other details are available at this time.
The hold and secure at Riverside PS has now been lifted. Thank you @WRPSToday for helping to keep our school communities and students safe - even if it is a precaution. 👏🏽👮🏿♀️👮🏼♂️ https://t.co/4e3xVcdfjV— Waterloo Region DSB (@wrdsb) January 18, 2019