Afghanistan ? An Army adviser from Fort Riley was killed Friday in an attack in Afghanistan, the Army said Monday.

Killed was Sgt. 1st Class Johnny C. Walls, 41, of Bremerton, Wash. He was killed after being attacked by small arms fire in Uruzgan, Afghanistan. Walls was a cannon crew member serving on a transition team assigned to the 1st Infantry Division at Fort Riley. Transition teams serve as advisers to the Afghanistan military and police.

To date, 138 Fort Riley soldiers and airmen have been killed in Iraq or Afghanistan.