Fisher-Price recalls millions of its Rock 'n Play baby sleepers after 30 deaths over the course of a decade

Fisher-Price has recalled nearly 5 million of its Rock 'n Play baby sleepers after more than 30 babies died in them over a 10-year period.

The US Consumer Product Safety Commission (CPSC) said anyone who bought a Fisher-Price Rock `n Play sleeper should stop using it immediately and contact Fisher-Price for a refund or voucher.

The sleepers, are soft padded cradles that vibrate. Fisher-Price and the CPSC said the deaths occurred after infants rolled over from their backs to their stomachs or sides while unrestrained, but did not specify how they died.

The warning also applies to the UK as the seats are sold in Britain and are available in variety of different designs.

In an article this week, Consumer Reports found that some of the infants died from suffocation.

Product recall: The Fisher Price Rock 'n' Play baby sleeper (AP)

A safety warning was issued last week, but The American Academy of Pediatrics urged Fisher-Price and the CPSC to recall the sleepers, calling them "deadly."

In a statement, Fisher-Price said that it stood by the safety of its products and said it issued the voluntary recall "due to reported incidents in which the product was used contrary to the safety warnings and instructions."

The recall covers about 4.7 million sleepers, which sold for between $40 and $149 since 2009.