CAMP DOUGLAS, Wis. (AP) — The Wisconsin Department of Military Affairs is releasing more information about the worker who was killed during an accident at Volk Field Air National Guard Base near Camp Douglas.

The agency said in a news release Tuesday that 40-year-old maintenance specialist Nicholas Janz died while performing his duties at the base on Monday. He was pronounced dead around 11 a.m. by Tomah Memorial Hospital’s medical control officer.

Janz had been employed as a civilian at the DMA since 2010. He resided in Warrens with his wife and three children.

DMA spokeswoman Jackie Halverson said in a telephone interview Janz was replacing lightbulbs on a runway when he touched what Halverson called a “live electrical source.”

Juneau County Medical Examiner Myron Oestreich says autopsy results are pending.