Topeka ? Two Fort Riley soldiers charged with murder in Iraq were serving their second tour of duty there, post officials said Thursday.

Officials identified the soldiers as Sgt. Michael P. Williams, 25, of Memphis, Tenn., and Spc. Brent W. May, 22, of Salem, Ohio. Both served with Company C of the 1st Battalion, in the 41st Infantry Regiment of the 3rd Brigade, 1st Armored Division. It has been assigned to the 1st Cavalry Division from Fort Hood, Texas, and in Iraq since June.

Williams and May are the second pair of soldiers from 1st Battalion, 41st Infantry charged with murder in as many weeks. The two others were charged with first-degree murder in Clay County in north-central Kansas.

About 750 soldiers with the regiment are serving a year in Iraq. Both Williams and May also were with the unit in Iraq from February 2003 until July 2003. Approximately 2,500 soldiers from Fort Riley are in Iraq.

Williams and May are charged with premeditated murder of three Iraqis. Williams also has been charged with obstruction of justice and making a false statement.

With few details about the latest murders, the unit commander’s wife had a meeting Wednesday for more than 50 soldiers’ spouses. Spokeswoman Deb Skidmore said Carol Bachelor, wife of Lt. Col. David Bachelor, wanted to make sure families and soldiers knew where to get help.