Two teens were arrested Thursday and charged in connection with an incident where rocks were thrown at vehicles driving on the Chicago Skyway a day earlier.
The 14- and 15-year-old boys were each charged with one count of felony vehicular endangerment and six counts of misdemeanor criminal damage to property, Chicago police said late Thursday night.
Police said their investigation, as well as information from Chicago Public Schools officials, lead them to the boys.
They're being held at Cook County's Juvenile Temporary Detention Center.
Police responded to a call of shots fired at around 9 p.m. Wednesday at Indianapolis Avenue and 105th Street on the South Side, according to Chicago police spokesman Daniel O’Brien.
The vehicles, several passenger cars and at least one tractor-trailer, were inspected by authorities in a nearby McDonald's parking lot. Windshields were damaged and one vehicle had a shattered sunroof.
"I was eastbound coming back to Chicago ... and no sooner did we pass the bridge we thought we had gotten hit by a car, but then we felt glass and I said, 'Pull over! Pull Over! Pull Over!' I was telling my girlfriend to pull over, and we looked up and the sunroof was totally smashed in," said Lamont Clark.
On Tuesday morning, Police News Affairs said it was not gunfire, and that someone actually threw lemon sized rocks from nearby railroad tracks at the vehicles.
"What we found last night was rocks commonly known as ballast that are along the railroad ties and railroad tracks," said O'Brien."Those were thrown onto the roadway."
No one was injured, but traffic was snarled for some time as authorities looked for the vandals.