WINDSOR, Conn. (AP) _ ABB Combustion Engineering has laid off 150 workers from its fossil fuel operations, after fewer workers than expected took an early retirement offer.

Those laid off Tuesday included engineers, designers and administrative workers. The cuts were needed to boost competitiveness for the company's fossil fuel operations, which make boilers and components for steam generators, the company said.

In May, the company offered early retirement to 700 workers, but only 90 workers took the deal. Company spokesman Frank Richters said the company has no immediate plans for more job cuts.

ABB Combustion Engineering employed about 3,000 people in Windsor. The company's headquarters are in Zurich, Switzerland, and its U.S. headquarters are in Norwalk.