A person briefed on General Motors Corp.'s plans says the company on Monday will identify the 14 factories it will close as it heads toward an a likely Chapter 11 bankruptcy protection filing.

The person says United Auto Workers officials in Detroit have told plant-level union leaders that the company will make the announcement, not the union. The person did not want to be identified because the plan has not been made public.

GM spokeswoman Sherri Childers Arb would not comment on Thursday.

GM has said it soon will identify factories to be closed under its restructuring plan. About 21,000 jobs will be lost.