General Motors Corp. is closing a sedan plant in the Detroit area as a result of the monthlong strike at parts supplier American Axle.

GM said Monday the shutdown of the Hamtramck assembly plant will affect 1,849 hourly workers. It is the 29th plant to be fully or partially shut down because of the strike at American Axle.

The plant makes the Cadillac DTS and Buick Lucerne sedans. It's the first car plant to be shuttered by the strike, which primarily has affected plants that make trucks and sport utility vehicles.

The closure of the Hamtramck plant is a sign the strike is having a deeper impact on GM's operations. As of Monday, GM has idled just more than 39,000 workers because of the strike.