In this undated photo issued Friday July 19, 2019, by Stena Bulk, showing the British oil tanker Stena Impero at unknown location, which is believed to have been captured by Iran.  Iran's Revolutionary Guard announced on their website Friday July 19, 2019, it has seized a British oil tanker in the Strait of Hormuz, the latest provocation in a strategic waterway that has become a flashpoint in the tensions between Tehran and the West. (Stena Bulk via AP)
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