Officials say Staff Sergeant Ronald Haynes was listed in stable but critical condition today after being injured at Camp Shelby when a shoulder-launched rocket simulator malfunctioned.

A friend says the accident occurred while Haynes, of Moss Point, was role-playing as the enemy during a weekend convoy training exercise at the Mississippi National Guard training facility south of Hattiesburg.

Lieutenant Colonel Doril Sanders, a Camp Shelby spokesman, says Haynes was burned and suffered injuries to his lower torso, chest and face at about 11:15 a.m., Sunday. He was taken to the University of South Alabama Medical Center in Mobile.

Sanders says Haynes has been assigned to the First Battalion, 305th Regiment, Third Brigade, 87th Training Support Division at Camp Shelby for two years. He had been on active duty for more than three years.

Haynes, known by the nickname "Pee Wee", was playing the role of the opposing force, when the accident happened.