U.S. Army names Fort Hood shooter, says had mental illness

U.S. soldier SPC Ivan Lopez is pictured during a deployment to Iraq in this undated handout photo by the Puerto Rico National Guard obtained by Reuters April 3, 2014. REUTERS/Puerto Rico National Guard/Handout via Reuters

FORT HOOD, Texas (Reuters) - The soldier suspected of shooting dead three people before killing himself at the Fort Hood Army base in Texas was identified as Ivan Lopez, a man battling mental illness when he went on a rampage, the base commander said on Thursday.

No motive was given for the shooting spree on Wednesday, which also left 16 wounded in what was the second mass killing in five years at one of the largest military bases in the United States, raising questions about security at such installations. Officials have so far ruled out terrorism.