The Consumer Product Safety Commission has issued a warning and is currently investigating 13 deaths associated with sling-style infant carriers.

The CPSC says these type of slings can pose a suffocation risk.  The commission is advising parents and caregivers who use these types of carriers (shown here) to be cautious when using them in babies under 4 months.

The report said that many of the babies who died in slings were low-birth-weight twin, were born prematurely or had a cold.