Washington (CNN) -- The U.S. Secret Service boosted its presence and its surveillance measures around the White House on Monday after an Iraq war veteran, who is apparently suffering from PTSD, jumped over a White House fence. Officers patrolling the area will be out in greater numbers and will be "looking for individuals who don't look like tourists," a federal law enforcement officer told CNN. Two security incidents in two days have raised concerns about the safety at 1600 Pennsylvania Ave. On Friday, Omar Gonzalez hopped the north fence and sprinted just past the north portico White House doors when he was stopped, Secret Service spokesman Brian Leary said.
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NEW: A White House fence jumper had more than 800 rounds of ammunition
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NEW: Omar Gonzalez also reportedly had hatchets and a machete in his car
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NEW: In August, he was arrested with a map of the White House circled
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Gonzalez did three tours in Iraq, his mental state worsened after each, his ex-stepson says
How the Secret Service could beef up @placeholder security