DETROIT (AP) — Evenflo is recalling more than 202,000 rear-facing infant seats because the buckles can become difficult to unlatch.

The recall affects Embrace 35/9999 models with an AmSafe QT1 buckle. Documents posted by U.S. safety regulators say that if the buckles don't release easily, it may be difficult to get a child out of the seat in an emergency.

The affected seats were made at various times from December 2011 through May of 2013.

Not all Embrace 35 models are covered by the recall. For others, the company will provide replacement buckles if requested by customers.

The recall comes after an investigation by the National Highway Traffic Safety Administration.

Owners with questions can call Evenflo at (800) 490-7591.