HOUSTON -

A popular children's Motrin pain reliever is being recalled.

Some flavors of concentrated Motrin infant's drops have already been pulled from store shelves.

The company has issued a voluntary recall of the Motrin infants' drops of the original berry flavor in the half ounce bottles, after tiny plastic particles were found inside.

Makers of the pain reliever say a third party supplier is to blame for the plastic particle contamination.