The White House said Friday that the second-in-command of the Takfiri group, ISIL, has been killed in a US air strike in northern Iraq.

The White House said Friday that the second-in-command of the Takfiri group, ISIL (so-called Islamic State in Iraq and Levant), has been killed in a US air strike in northern Iraq.

The National Security Council identified the slain militant as Fadhil Ahmad al-Hayali, also known as Haji Mutaz, and said he was ISIL leader Abu Bakr al-Baghdadi's senior deputy.

US forces say they were able to kill him, along with an ISIL "media operative" known as Abu Abdullah, on August 18 in a strike on a vehicle near the city of Mosul.

The White House described Al-Hayali as a member of the ISIL’s ruling council, and "a primary coordinator for moving large amounts of weapons, explosives, vehicles and people between Iraq and Syria.

"He supported ISIL operations in both countries and was in charge of ISIL operations in Iraq, where he was instrumental in planning operations over the past two years, including the ISIL offensive in Mosul in June 2014," it said.

Like many senior Iraqi Takfiris, before joining the ISIL group, Al-Hayali had been a member of Al-Qaeda's Iraqi faction.