(Image source from: Islamic State group's finance chief killed)

The Islamic State group's finance chief, Abu Saleh has been confirmed killed in a coalition air strike last month, US officials announced on December 10.

Colonel Steve Warren, US military spokesman said in a videoconference from Baghdad, Abu Saleh was one of the most senior and experienced member of the Islamic State financial network.

Brett McGurk, The US government's envoy for the anti-IS fight said on twitter that Abu Saleh was killed along with two other members of group "as part of coalition campaign to destroy ISIL's financial infrastructure," describing him as the group's "finance minister."

Terrorist real name is Muwaffaq Mustafa Muhammad al-Karmush, as described in a State Department terrorist blacklist as a 42-year-old Iraqi.

"Killing him and his predecessors exhausts the knowledge and talent needed to coordinate funding within the organization," Warren said.

Other two associates were identified as Abu Mariam, an enforcer and senior leader in IS extortion networks and Abu Waqman al-Tunis who coordinated IS's transfer of people, weapons and information. Abu Mariam, list as Mounir Ben Dhaou Ben Brahim Ben Helal (32) in the State Department terrorist list.

After the attacks in Paris last month, The United States is creating a special operation unit in Iraq that will be able to mount raids into Syria to capture or kill IS leaders. The unit will target IS leaders in Syria and Iraq with air strikes.

"We want this expeditionary targeting force to make ISIL and its leaders wonder when they go to bed at night, which is going to be coming in the window," US Defense Secretary Ashton Carter told during a Senate hearing.

 In London, the US Treasury's acting under secretary for terrorism and financial crimes, Adam Szubin, said that IS derives most of its funding from economic activity in the territory it controls. It has reaped more than $500 million in black market oil sales, looted bank vaults captured in Iraq and Syria, and raised millions more through extortion. We believe these airstrikes are markedly degrading one of ISIL's most important sources of funding," he added.

-Nandini