Lyons Township High School North campus briefly locked down after reports of shots fired

October 17, 2013 6:22:13 PM PDT
Police say those were not gunshots people heard at a school in west suburban LaGrange.

The north campus of Lyon Township High School was briefly evacuated late Thursday afternoon.

People called 9-1-1 after hearing what they thought were gunshots.

The school was briefly locked down and after school activities were canceled.

On Thursday night, officials say a full search by police and the school superintendent found no evidence of any gunfire.