Pharmacy: Mistake made in polo horse supplement

WEST PALM BEACH, Fla. (AP) -- An official at a Florida pharmacy tells The Associated Press that the business incorrectly prepared a supplement for 21 polo horses that died over the weekend before a championship match.

The chief operating officer of Franck's Pharmacy in Ocala, Fla., told the AP in a statement Thursday the business conducted an internal investigation that found "the strength of an ingredient in the medication was incorrect." The statement from Jennifer Beckett does not say what the ingredient was.

The pharmacy says is cooperating with an investigation by state authorities and the Food and Drug Administration.

The horses from the Venezuelan-owned Lechuza polo team began crumpling to the ground shortly before Sunday's match, shocking a crowd of well-heeled spectators.