US vice-president says a lot of progress was made in talks at the weekend, adding: "The ball is in Iran's court".

A US blockade of Iran's ports takes effect - Donald Trump said it would begin at 10:00 ET (14:00 GMT / 15:00 BST) In a social media post, the US president warns that any Iranian " ...

UK maritime officials advise vessels in the area they may encounter a "military presence" and "right-of-visit procedures ...

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