More key details are emerging about the raid in which the Islamic State leader Abu Bakr al-Baghdadi died. A senior advisor to the Kurdish-led Syrian Democratic Forces says the SDF was pivotal in efforts to track down Baghdadi. In a series of tweets the senior advisor said: "All intelligence and access to al-Baghdadi, as well as the identification of his place, were the result of the SDF's own work. Our source was involved in sending coordinates, directing the airdrop, participating and making the operation a success." Meanwhile Turkey is threatening to resume its assault on the Kurds in northern Syria. Ankara says Kurdish forces have not pulled back from the region, which is one of the conditions set by Turkey and Russia when they agreed to a six-day ceasefire that ends later today.