Multiple outlets report that a Delta Air Lines flight was struck by a firework while approaching or landing at Chicago’s Midway International Airport during the Fourth of July celebrations. Delta said the incident occurred as the aircraft descended; the flight’s pilot reported feeling a “big bang” and notified air traffic control shortly before landing. According to aviation and media reports, the Airbus A319 involved was at a low altitude—described as around a few hundred feet in some accounts—when the suspected contact occurred. Reports also say air traffic control acknowledged multiple similar firework-related close calls on the holiday and warned another pilot about conditions in the area, describing the airspace as unusually hazardous. The flight landed safely, and outlets report there were no injuries. The aircraft was taken out of service for inspection as a precaution, and the U.S. Federal Aviation Administration is investigating the incident and related reports during the holiday period.