US toughens stance on Iran, ending exemptions from oil sanctions
Mike Pompeo says any nation interacting with Iran should do its diligence and err on the side of caution
The US has announced it will no longer exempt countries from sanctions that aim to impose a complete oil embargo on Iran.
Officials said the Trump administration would not renew any of the sanctions waivers granted to a handful of countries, including China, India, Turkey, Japan and South Korea, when those waivers expire on 2 May.