The United Auto Workers union has initiated a strike at an American Axle & Manufacturing plant in Michigan that produces critical components for General Motors trucks.

The facility manufactures key parts for the Chevrolet Silverado and GMC Sierra pickup trucks, two of GM's most important and profitable vehicle lines. The strike affects the supply chain for these popular truck models.

American Axle & Manufacturing is a major automotive supplier that provides drivetrain and driveline systems to various automakers. The Michigan plant's production is directly tied to GM's truck manufacturing operations.

The work stoppage represents the latest labor action by the UAW, which has been active in organizing strikes across the automotive industry. Details about the specific issues driving the strike or the number of workers involved were not immediately available.

The strike could potentially impact GM's truck production if prolonged, as the Silverado and Sierra are among the company's best-selling vehicles and significant revenue generators.