BAGHDAD — Two American soldiers have been charged with premeditated murder for allegedly killing three Iraqis and then planting weapons on their bodies to portray them as combatants, the U.S. military said Saturday.

The three Iraqis were killed in separate incidents between April and June near Iskandariyah, 30 miles south of Baghdad, the military said in a statement.

Fellow soldiers reported the alleged crimes to military authorities who launched an investigation, the military said, without giving further details on the killings or the victims.

One of the accused soldiers, Staff Sgt. Michael A. Hensley, from Candler, N.C., was put in military confinement in Kuwait on Thursday, facing three counts each of premeditated murder, obstructing justice and “wrongfully placing weapons with the remains of deceased Iraqis,” the statement said.

The other, Spc. Jorge G. Sandoval, was arrested Tuesday at his home in Laredo, Texas, and transferred to confinement in Kuwait. The two are assigned to the 1st Battalion, 501 Infantry Regiment, 4th Brigade (Airborne), 25th Infantry Division, based at Fort Richardson, Alaska.

Sandoval’s mother, Alicia Sandoval, said her 22-year-old son was on a two-week leave visiting his family when authorities came and asked to speak to him. They said he would be back shortly, but she heard nothing since and had no idea where he was taken until an Associated Press reporter called.

“I haven’t had any news,” she said in Spanish on Saturday from her home in Laredo. “It was all very sudden.”