Volvo Trucks North America will lay off 400 more workers this month in response to a stubbornly sluggish heavy truck market, a company official said Friday.

The layoffs will take place Feb. 26. Both salaried and hourly workers will be affected, Volvo spokesman Keith Brandis said.

The company has already laid off nearly 1,100 workers during the last year.

Bill Burton, president of United Auto Workers Local 2069, said the union was notified of the layoffs late Thursday, but the number of cuts wasn’t announced.

“I think older workers who have seen it before were expecting it,” Burton said. “The younger ones were hoping our down weeks would save them from layoffs.”