Attorney General Marty Jackley investigating an attack at the state penitentiary

SIOUX FALLS, SD (KELO.com) — Attorney General Marty Jackley’s office is investigating an altercation at the Jameson Annex of the state Penitentiary that left a half-dozen inmates injured.

Five were hospitalized with non-life-threatening injuries.  Homemade knives, or ‘shanks’, were used in what Jackley calls a coordinated attack.  He says charges are expected soon as investigators review surveillance video.