FORT BRAGG, N.C. — A training exercise involving demolitions killed one special forces soldier and injured seven others at the Army’s largest base Thursday, just a day after 15 Marines were hurt in a fire while training in California.

The soldiers were taken to several hospitals, including the Womack Army Medical Center on base for treatment, said Lt. Col. Rob Bockholt, a spokesman for the U.S. Army’s Special Operations Command, which is based at Fort Bragg in North Carolina.

Staff Sgt. Alexander P. Dalida, 32, of Dunstable, Mass., was killed during the exercise, Bockholt said. The cause of death is under investigation. Dalida, who enlisted in 2006, was assigned to 1st Special Warfare Training Group (Airborne).

Bockholt didn’t know the extent of the other soldiers’ injuries.

Initial reports said the injuries happened in an explosion, but Bockholt says he could not confirm that.