Published: Jan 23, 2011 2:04 AM EST
Updated: Jan 22, 2011 11:04 PM EST

DETROIT (AP) - A person familiar with the plan says General Motors Co. is adding a shift and more than 650 jobs at its assembly plant in Flint.
      
The person spoke Saturday to The Associated Press on the condition of anonymity because the announcement had not yet been publicly made. An announcement is scheduled for Monday.
      
The Detroit News reported earlier Saturday about GM's planned investment in the Flint plant. The plant builds the heavy-duty Chevrolet and GMC Sierra crew and regular cab trucks and the light-duty Chevrolet Silverado crew and regular cab trucks.
      
Flint is the birthplace of GM and once was a powerful auto manufacturing town, but its economy and population have steadily declined over the past few decades. It's about 50 miles northwest of Detroit.

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