Nebraska conservation officers are looking into two cases of big game animals killed illegally.

One case involves the death of a cow elk.

Officer Frank Miller says it happened on the 14th or 15th northeast of Valentine.

Scott Brandt says four buck pronghorns were discovered Monday morning near Kimball.

They are asking anyone with information to contact the Game and Parks Commission.

Information leading to an arrest and conviction is eligible for a reward of up to one-thousand dollars.