The Kellogg Co. has filed a lawsuit against its local union in Omaha complaining that striking workers are blocking entrances to its cereal plant and intimidating replacement workers as they enter the plant.

The company based in Battle Creek, Michigan, asked a judge to order the Omaha chapter of the Bakery, Confectionery, Tobacco Workers and Grain Millers International Union to stop interfering with its business while workers picket outside the plant. The workers in Omaha and at Kellogg's three other U.S. cereal plants have been on strike since Oct. 5.