Reckitt said on Friday a U.S. circuit court has ruled that a new trial could be sought by plaintiffs in a case that had accused the London-listed firm and Abbott of failing to warn of the risks of premature baby formulas.

Abbott Laboratories and Reckitt Benckiser Group Plc shares fell as a judge ordered a new trial after rejecting a verdict that had cleared the companies of liability over claims they hid potential risks of their premature-infant formulas.

Reckitt said on Friday a circuit court in the United States had ruled that a new trial could be sought by plaintiffs in a case that accused the London-listed firm and Abbott of failing to warn of the risks of premature-infant formulas.