A threat to a north Georgia elementary school led the district to place all four of its schools on lockdown, Thursday.

Cartersville City Schools posted a message on its website that it made the decision after receiving a threat to Cartersville Elementary School. They added that they didn't know the validity of the threat at the time and were allowing law enforcement to investigate.

The school system later announced it would be proceeding with dismissal but with police present. The lockdown also forced the schools to dismiss later than usual.

The school system's note to parents said that they were taking the threat seriously but added that the safety of the students and staff was never compromised.