Master Sgt. Jonathan J. Dunbar was killed on March 30 near Manbij, Syria. Defense Department picture.

A US special operator who was killed in Syria recently was a member of the Army’s elite Delta Force and on a mission to kill or capture a member of the Islamic State terrorist group, CNN first reported on Monday.

Master Sgt. Jonathan J. Dunbar and a British service member were killed on March 30 by an improvised explosive device near Manbij, according to the Defense Department. A Pentagon spokesman declined to comment when Task & Purpose asked if Dunbar was a member of Delta Force. Officially, he was assigned to Headquarters, U.S. Army Special Operations Command at Fort Bragg, North Carolina.

Few details about the mission on which Dunbar and the British soldier were killed have been released so far.

“Coalition forces, in an advise, assist and accompany capacity with our partners, were conducting a mission to kill or capture a known ISIS member when they were struck by an improvised explosive device,” Pentagon spokesman Marine Maj. Adrian Rankine-Galloway said in an email. “This operation was part of the Coalition's mission to defeat ISIS, and we remain focused on our mission.”

Dunbar’s military awards include three Bronze Stars, four Army Commendation Medals, six Army Achievement Medals, five Good Conduct Medals, the National Defense Service Medal, the Afghanistan Campaign Medal with two Bronze Service Stars, the Iraq Campaign Medal with two Bronze Service Stars, the Global War on Terrorism Expeditionary Medal, the Global War on Terrorism Expeditionary Medal, the Global War on Terrorism Service Medal, the Noncommissioned Officer Professional Development Ribbon with Numeral 3, the Army Service Ribbon, two Overseas Service Ribbons, the NATO Medal, the Ranger Tab, the Combat Infantryman Badge, the Expert Infantryman Badge, the Pathfinder Badge, the Military Freefall Jumpmaster Badge, and the Parachutist Badge.

WATCH NEXT: