Key facts
- Iran has given the US a four-day ultimatum regarding the Strait of Hormuz.
- UK Foreign Secretary Ed Miliband met with Iran's foreign minister.
- Britain warned Iran against hostile activities on UK soil.
Iran has issued a four-day ultimatum to the United States concerning the reopening of the Strait of Hormuz. The warning was delivered during a meeting between UK Foreign Secretary Ed Miliband and Iran's foreign minister. During the talks, Britain also issued a warning to Iran against engaging in hostile activities on UK soil, including cyberattacks.