A few days ago we reported on murder charges brought against two U.S. soldiers over the deaths of three Iraqis. Today, two soldiers were charged with murder of an Iraqi civilian in an unrelated case.

A military statement identified the soldiers as Staff Sgt. Johnny Horne Jr. and Staff Sgt. Cardenas Alban, both from Company C, 1st Battalion, 41st Infantry Regiment from Fort Riley, Kansas. The military declined to provide details about the case, saying an investigation is ongoing.

That makes three sets of U.S. soldiers charged with murder in the past two weeks. Here's the first case, which did not involve the murder of Iraqis:

On Sept. 15, prosecutors charged Sgts. Eric J. Colvin, 23, of Pappilion, Nebraska, and Aaron R. Stanley, 22, of Bismarck, North Dakota, with the shooting death of Staff Sgt. Matthew H. Werner, 30, of Oxnard, California, at a home in rural Clay County, about 48 kilometers (30 miles) from Fort Riley. A second soldier, Spec. Christopher D. Hymer, 23, of Nevada, Missouri, was wounded in the incident and died Saturday in a Wichita, Kansas, hospital. Prosecutors had charged Colvin and Stanley with attempted first-degree murder in his shooting and expect to upgrade the charges.