Lawyers for Sheffield United and Wales footballer Ched Evans say he will appeal against his conviction for raping a 19-year-old woman in a hotel room. In a statement posted on the Yorkshire club's website, law said he "maintains his innocence".
Evans was jailed after being found guilty of raping the woman at a hotel in North Wales last May.
More top news
The incident is not believed to be terror-related, British Transport Police said.
The royal couple have been in the US to mark the 300th anniversary of the foundings of New Orleans and San Antonio.
A small number of people were treated at Southgate Tube station, British Transport Police said.