Workers at Mack Trucks reject tentative contract deal and will go on strike early Monday

Union workers at Mack Trucks have voted down a tentative five-year contract agreement reached with the company and plan to strike at 7 a.m. Monday, the United Auto Workers union says.

Union President Shawn Fain said in a letter to Mack parent company Volvo Trucks that 73% of workers voted against the deal in results counted on Sunday.