The US Attorney General Eric Holder has said that authorities negotiated with BP to resolve the civil claims it is facing but was unable to reach a "satisfactory" number.
He added that is was possible that the US and the oil giant could still resolve the claims out of court, but that officials are preparing for trial.
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Harry and Meghan left Windsor Castle during Sunday afternoon after being hosted by the Queen and Duke of Edinburgh over the weekend.
Clare Waight Keller said it was an "enormous honour" to have been given one of fashion's most coveted jobs ahead of the royal wedding.
As temperatures rise over the coming few days, the risk of thunderstorms across some southern parts