The alleged wife of the leader of Baghdadi IS revealed a lot of inside information of the group after being arrested last year, the source said.

According to the unnamed Turkish official, the woman who identified herself as Rania Mahmoud was in fact Asma Fawzi Muhammad al-Qubaysi, the first wife of the supreme Islamic State (IS) leader, Abu Bakr. al-Baghdadi, who was killed in a US special raid last month.

Al-Qubaysi was arrested in Turkey's Hatay province, near the Syrian border on June 2, 2018, along with 10 others, including Baghdadi's daughter, who identified herself as Leila Jabeer. Officials said the blood relationship was confirmed using a DNA sample of Baghdadi, provided by the Iraqi authorities.

"We discovered the true identity of this wife quite quickly. At that time, she volunteered to provide information about Baghdadi as well as the internal activities of the IS, helping us to confirm a lot. We knew we were getting new information, which led to a series of other arrests, "the Turkish official said.

Turkey's President Recep Tayyip Erdogan said on Friday that the country had arrested Baghdadi's wife, "but did not make a fuss" as the US propagandized about ISIS's ultimate campaign to kill the leader. captured his sister and brother-in-law in Syria. However, it is unclear the identity of the wife Erdogan mentioned.

According to Muhammad Ali Sajid, Baghdadi's brother-in-law is being held in Iraq, the IS leader has four wives as of the last time the two met in the summer of 2018.

During the October 26 raid of US troops in Idlib province, northwestern Syria, Baghdadi died by detonating a suicide belt of bombs next to his two children when the US special forces cornered them to death. An unnamed US military official said his two wives were also there, but the information was not confirmed.

IS later confirmed the death of Baghdadi, announced the new leader, Abi Ibrahim al-Hashimi al-Qurashi, and threatened revenge.