US-Iran tensions rise after Qassem Soleimani, head of Iran's elite Quds Force, killed in Baghdad by US air strike.

Tensions between the United States and Iran have escalated dramatically after a US air strike killed Qassem Soleimani, head of Iran's elite Quds Force, and Abu Mahdi al-Muhandis, deputy commander of the Popular Mobilisation Forces (PMF, or Hashd al-Shaabi), an Iran-backed umbrella organisation comprising several militias.

The Pentagon confirmed the attack, which took place at Baghdad international airport in Iraq on Friday, saying it came "at the direction" of President Donald Trump.

Soleimani and al-Muhandis's deaths are a potential turning point in the geopolitics of the Middle East and Iran has vowed a "harsh" response.

Here are all the latest updates amid heightened tensions.