PITTSBURGH (AP) _ H.J. Heinz Co. announced Wednesday that its frozen food division will launch a line of frozen pizzas.

The single-serving pizzas will be marketed under the Smart Ones diet frozen food line and will be called Smart Ones Bistro Selections Pizzas. The new line will be shipped to grocers in May and will be in stores nationwide by summer.

Heinz officials said the new line was developed in response to the growing popularity of pizza among women.

The Smart Ones line has had a 49 percent increase in dollar sales growth over the last two years.