Corbyn denies UK had 'credible evidence' in blaming Iran for tanker attack
Iran has denied any involvement.
Follow us on GoogleBritish opposition Labour Party leader Jeremy Corbyn holds the Political Declaration, setting out the framework for the future UK-EU relations, at his office in the Houses of Parliament in London, Britain April 2, 2019.(photo credit: STEFAN ROUSSEAU/REUTERS)ByZACHARY KEYSER