Abu Bakr al-Baghdadi, chief of the Islamic Condition (IS) group, has killed himself during a raid by US commandos in north-west Syria, President Donald Trump has explained.
Baghdadi arrived to prominence in 2014, when he announced the creation of a “caliphate” in parts of Iraq and Syria.
His demise is a significant victory for Mr Trump as he faces large criticism for his final decision to pull US troops out of northern Syria.
BBC security correspondent Frank Gardner describes the operation to seize Baghdadi and analyses what it means for IS.
Scientists: Benjamin Strick (@bendobrown), Ryan O’Farrell (@ryanmofarrell) and Christiaan Triebert (@trbrtc)