Workers at three manufacturing plants walked off the job after turning down a proposed labor deal that included pay increases and bonuses.

The union representing Boeing employees have begun a strike after about 3,200 workers at facilities in St. Louis and other locations voted to reject a modified four-year labor agreement.

More than 3,200 union members who assemble Boeing's fighter jets in the St. Louis area and Illinois went on strike on Monday after rejecting a second contract offer the previous day.