Poppy seeds on a bagel triggered a false positive on a drug test and a nightmarish ordeal for a western Pennsylvania couple who say their newborn daughter was seized and held for five days, according to a federal civil rights suit filed Thursday by the American Civil Liberties Union of Pennsylvania.

In the suit, Elizabeth Mort and her fiance, Alex Rodriguez, claim that Jameson Hospital never informed them that Mort had tested positive for illegal drugs and that it had notified officials at Lawrence County Children and Youth Services.