A member of Iran’s Islamic Revolutionary Guard Corps (IRGC) who was embedded with Iraq’s Popular Mobilization Forces (PMF) was killed on Saturday by an Islamic State booby trap near the Tal Afar airport, which is to the west of Mosul, according to Iranian media.

The PMF, the umbrella organization of Iraqi-Shiite militias fighting the Islamic State that is dominated by IRGC-backed groups, has claimed new gains near Tal Afar during the past week.

The death of Guard member Kheirollah Ahmadi underscores Iran’s involvement in Iraq. The IRGC has not divulged details of Ahmadi’s military activities in Iraq, or whether he also rotated into Syria.

Read more: Long War Journal