A deputy leader of Islamic State (IS), Fadhil Ahmad al-Hayali, has been killed in a US military strike in northern Iraq, the White House says, reports BBC.Hayali, also known as Hajji Mutazz, is described by US officials as the second in command of the group.They said he was killed in an attack on his car in Mosul on Tuesday, and that his death would damage IS operations.A number of IS leaders have been taken out by US-led air coalition strikes in both Iraq and Syria in recent months.Wide influenceHayali was a primary coordinator for moving large amounts of weapons, explosives, vehicles and people between Iraq and Syria, the US National Security Council`s Ned Price said in a statement.In Iraq, Hayali was "instrumental in planning operations over the past two years, including the IS offensive in Mosul in June 2014", Price said.He is described as "the senior deputy" to IS leader Abu Bakr al-Baghdadi, who was reportedly seriously injured in another air strike by the US-led coalition in March this year.