About 3,200 workers at Boeing facilities in St. Louis; St. Charles, Missouri; and Mascoutah, Illinois, voted to reject a labor agreement with Boeing.

Boeing is being hit with its second strike in less than a year after 3,200 hourly workers walked off their jobs building military aircraft.

The strike involves roughly 3,200 workers at three Boeing sites, including its St. Louis hub, which is expected to be central to the F-47 program.