Shafaq News/ Four members of Iraq's Tribal Mobilization Forces (TMF) were killed in an ISIS blitz on a security checkpoint in the western governorate of Anbar, a police source reported on Sunday.

The source told Shafaq News Agency that a group of ISIS militants attacked a security checkpoint in the Khouda village in the Heet district.

At least four fighters of the Tribal Mobilization were killed, the source said.

The Tribal Mobilization Forces, also known as Hashd al-Asha'ari, are a paramilitary group in Iraq that was formed in 2014 in response to the threat posed by ISIS.

It comprises mainly Sunni tribal fighters who have organized themselves to defend their communities against the extremist group. These fighters receive training and support from the Iraqi government, as well as from the United States and other international partners.

The Tribal Mobilization Forces has been involved in several military campaigns against ISIS, including the liberation of Mosul in 2017.