The Consumer Product Safety Commission is telling parents of infants under 4 months to stop using two baby slings made by Infantino.
More than a million "SlingRider" and "Wendy Bellissimo" slings are being recalled because of possible links to three infant deaths.
The CPSC says babies could suffocate in the soft fabric slings, which wrap around the chest so parents can carry their babies.
Earlier this month, the agency issued a broad warning about sling-style baby carriers, but did not single out a specific type or manufacturer. It said it had identified or was investigating at least 14 deaths in the last 20 years associated with baby slings.
Baby experts and breast-feeding advocates insist that not all slings are dangerous. They say carriers that keep a newborn baby solidly against the mother's body, in an upright position, are safe.
Infantino says it's working with CPSC and ASTM International, an organization that sets voluntary safety standards, to develop a standard for slings.