An elementary school in south Cambridge was placed in lockdown for a brief period of time Thursday afternoon.

The Waterloo Region District School Board said at 2:24 p.m. that a lockdown had been ordered at Tait Street Public School.

Students were being kept in their classrooms due to what the school board called β€œan incident on school property.”

All students and staff were safe, the school board said., and the lockdown was lifted about 20 minutes later.