March 28, 2014 11:40 AM EDT

General Motors has ordered a stop to most sales of its best-selling car model, the Chevrolet Cruze.

The company did not give a reason for the stop in sales, which affects most of the Chevrolet Cruzes on dealer lots today, CNN reports.

No recall has been issued for the compact car, but the announcement raised alarm bells among investors, sending GM’s stock down slightly in trading on Friday morning. The halt in sales follows an earlier recall of 1.6 million vehicles worldwide related to a faulty ignition switch linked to the deaths of at least 12 people.


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