More: The Falkland Islands is to hold a referendum this year on their "political status" in an attempt to bring an end to the continuing dispute with Argentina over the islands' sovereignty,
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It is "clear" ministers cannot proceed with the current Bill, Sir Keir said, threatening to "work with all sides" to ensure revisions.
Rain will clear eastwards through Sunday but it will remain blustery.
Donald Trump has indicated he does not intend to block the release of thousands of secret files about the assassination of John F Kennedy.