(CNN) — Two men tried to ram the main gate to enter the headquarters of the National Security Agency at Fort Meade, Maryland on Monday, according to a federal law enforcement official briefed on the investigation. An NSA police officer shot one of the men dead and seriously injured the second.
Aerial shots show two vehicles at an intersection that appear to be damaged.
The incident took place near one of the gates to the complex, far from the main buildings.
This is the second security incident this month involving the NSA. At the beginning of March, a former state correctional officer was arrested, accused in a string of Maryland shootings, including one at Fort Meade. Gunshots struck a building near the NSA office, according to a police report.
Officers stopped Hong Young, 35, of Beltsville, Maryland, and recognized his vehicle as matching authorities’ description of a car seen in surveillance footage near some of the other shootings. A gun in the car matched evidence found at the shootings, and Young was arrested, authorities said.
Police said earlier this month that there were no links to terrorism in the case, and no motive has been determined. No one was killed in the five shooting incidents.
In addition to the headquarters of the NSA, Fort Meade is home to 95 units from all branches of the armed forces and offices that report to several Defense Department agencies, according to the U.S. Army, which operates the base.
About 11,000 military employees and 29,000 civilians work there, according to the Army.
Some 6,000 people also live on the base, which began operations in 1917 as a garrison for World War I draftees, the Army said.
CNN’s Michael Pearson and John Newsome contributed to this report.
By Ashley Fantz and Evan Perez, CNN
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