General Motors Co will halt Hummer production next week at its Louisiana plant until the sale of the brand to a Chinese company is completed.

Hummer spokesman Nick Richards on Wednesday said it was unclear whether jobs would be affected at the plant in Shreveport, Louisiana, which also builds Chevrolet Colorado and GMC Canyon pickup trucks.

"It hasn't been determined what the impact will be right now, but Hummer production is under a quarter of production" at the plant, Richards said.

GM agreed last year to sell Hummer to Sichuan Tengzhong Heavy Industrial Machinery Corp and expected the deal to close early in 2010 after approval by Chinese and United States regulators.

Assembly of Hummers will halt next Tuesday because there's "sufficient inventory in the field" to sustain dealers while the sale makes its way through the regulatory process, Richards said.

He said the firm expects to get regulatory approval and to complete the deal. Hummer sales have been struggling since the sale announcement.