Chicago Police Department 22nd District Comm. Sean Joyce and other officers respond to scene near 111th Street and Western Avenue.

A toolbox containing what appeared to be one pound of TNT was discovered in the street in front of a business on the 11000 block of South Western Avenue on Nov. 13 at around 10 a.m.

After receiving a 911 call from the employee of O’Rourke’s Office, 11064 S. Western Ave., Chicago Police Department (CPD) officers shut down Western Avenue between 110th and 112th streets and 111th Street from Maplewood Avenue to Western Avenue.

CPD 22nd District Commander Sean Joyce was on the scene and said police bomb squad personnel were in response.

According to a post on social media from O’Rourke’s Office, the employee arrived to find a “military-grade toolbox” in the middle of the street.

“Being the nice guy he is,” according to the post, the employee removed it from the street and opened it “to find it was a bomb.”

He immediately called 911.

The post also showed a picture of the device that has labeling that reads, “High explosive, TNT, 1 pound, dangerous.”

The social media post said surveillance footage shows the toolbox fell out of a truck or minivan, and there was no intended attack on the business.

As of 11 a.m., police were still on the scene.

This story will be updated as more details become available.