DENVER (AP) — Sen. Mark Udall is renewing his call to extend a wind-energy tax break following news of more layoffs at Vestas.

Vestas, the world's biggest maker of wind turbines, said Wednesday that it's cutting 7 percent of its overall workforce in its second round of lay-offs this year.

Udall said he's afraid more layoffs will follow if Congress doesn't extend the break beyond this year. It helps offset the cost of electricity production during a wind farm's first 10 years.

The Danish company has previously announced some lay-offs in the United States, including Colorado. On Tuesday it said it would lay off workers at its plant in Brighton. Last week it said it would cut 90 jobs at its tower factory in Pueblo.

Vestas has about 1,700 employees in Colorado and 20,400 globally.