The U.S. Consumer Product Safety Commission (CPSC) has announced recalls of the following product. Consumers should stop using recalled products unless otherwise instructed.

Product: Magnetix magnetic building sets

Units: Four million building sets. In March, 3.8 million Magnetix sets were recalled.

Importer: Mega Brands America Inc., the new owner of Rose Art Industries Inc.

Hazard: If a child swallows more than one tiny powerful magnet detached from the plastic building pieces or one such magnet and a metallic object, the objects can attract to each other inside the intestines, which can be fatal if not treated immediately.

Incidents/injuries: CPSC and Mega Brands are aware of one death, one aspiration and 27 intestinal injuries. Emergency surgical intervention was needed in all but one case. At least 10 injuries involved children ages 6 to 11 years old.

Description: These Magnetix sets contain up to 250 plastic building pieces and ½-inch diameter steel balls. The building pieces include 1½-inch squares, 1-inch triangles, cylinder rods, flexors, connectors,extenders and curves and come in an assortment of colors.

Sold at: Mass merchants and other toy and arts and crafts stores sold the sets nationwide for $20 to $60. Sets currently in stores are not included in the recall.

Remedy: Stop using the recalled magnetic sets and contact Mega Brands for a comparable replacement toy.

Contact: Call 800-779-7122 or visit www.megabrands.com. Report any incidents of loose magnets to the CPSC hotline at 800-638-2772 or to the CPSC Web site at www.cpsc.gov.