A federal consumer agency and Fisher-Price are warning parents about the Rock ’n Play sleeper following reports that 10 infants since 2015 have died after rolling over while in the seat.

In a joint statement on Friday, the agency, the United States Consumer Product Safety Commission, and the company recommended that parents stop using the seat when a child reaches 3 months old “or as soon as an infant exhibits rollover capabilities.”

The deaths occurred after infants rolled from their back to their stomach or side when they were unrestrained in the seat. All the infants who died were 3 months or older, the statement said.

[Some day cares used dangerous infant sleeper after it was recalled.]

The Rock ’n Play sleeper features a fabric cradle on a metal stand that rocks babies so they can be soothed to sleep. Fisher-Price said parents should always use the sleeper’s harness to secure infants.