War on Iran: Tehran to increase upgraded weapons use as oil facilities come under threat

Iran says it will increase the use of what it calls "upgraded weapons" to target US-linked energy infrastructure in the region. The threat is a response to US President Donald Trump's ultimatum to stop blocking the energy shipping chokepoint, the Strait of Hormuz. Meanwhile, the US embassy in Baghdad was struck by a missile, just a day after it renewed its highest security alert for Iraq. An Iranian-backed militia has reportedly claimed responsibility. No casualty has been reported. Olly Barratt reports from Erbil in Iraq.