FORT HOOD, TX (CNN) - A memorial service is under way at Fort Hood in Texas, to remember the victims from last week's shooting.
Three empty pairs of boots, forming the "battlefield cross" along with rifles and helmets, represent the fallen soldiers.
Family members were escorted to their seats shortly before the service began.
President and First Lady Obama arrived at the service just after 1:30 pm. It's the first time the President has visited Fort Hood since the memorial for the victims of a 2009 shooting at this army installation.
The victims of last week's rampage, Army Sergeant Timothy Owens of Illinois, Staff Sergeant Carlos Rodriguez of Puerto Rico, and Sergeant First Class Daniel Ferguson of Florida, were being remembered today.
Army specialist Ivan Lopez is suspected in the shootings.
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A memorial for the victims of last week's Fort Hood shooting takes place today at the military post near Killeen, Texas. The Commander-in-Chief President Obama will be there to honor the fallen and the wounded.
The Obamas traveled to Fort Hood in 2009 to honor the victims of the shooting that left 13 dead and 32 injured. The President and First Lady are returning today to honor the victims of last week's shooting. Three victims were killed, and 16 others were wounded.
Authorities say the gunman, Army specialist Ivan Lopez, died at his own hands.
About two thousand people have been invited to Wednesday's memorial.
The National Center for Victims of Crime has announced its joined with Fort Hood to collect donations for the victims and their families.
Donations can be made at nationalcompassionfund.org.