A supermarket chain pulled soup cans from the shelves of its stores after a family reported finding a sewing needle in a sealed can of minestrone, officials said.

The incident was the fourth report of needles or pins found in food purchased from stores in the Bethlehem area in the past two weeks.

The soup was purchased Saturday at a Giant Food Store in Wind Gap. Company spokesman Dennis Hopkins said store personnel pulled cans with similar lot numbers from shelves of all stores as a precaution. He said the chain was also increasing its undercover security until further notice.

Police in Wind Gap, about 60 miles north of Philadelphia, are investigating.

Giant, owned by the Dutch food company Ahold Ltd., operates 255 supermarkets in six states: Pennsylvania, Maryland, Virginia, West Virginia, New York and Ohio.

Last week, at another Giant store near Bethlehem, a man reported finding a rusty sewing needle in a loaf of bread. Two other incidents were at a King's Supermarket in Bethlehem, in which customers and employees reported finding pins in an onion, packages of ground beef and a ham.