General Motors Corp said Monday it is slashing 2,000 jobs at two plants in Michigan and Ohio and will reduce production in about 13 other factories as demand for vehicles drops.

About 1,200 workers will be laid off at the Michigan plant and 800 more in Ohio, according to the Associated Press. The move is part of an effort to align production with market demand, said GM spokesman Chris Lee, according to AP.

GM has idled about 20 of its 22 plants in North America in January due to dropping sales and is planning to further cut production although it didn't project the total vehicle production cut.

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