Washington officials confirm that no shots were fired at the Washington Navy Yard.
Law enforcement swarmed the area after a report of an active shooter.
Washington DC Mayor Muriel Bowser explains how the incident unfolded.
IN: "That an employee...
OUT: ...of a shooter."
DUR: 31
Many were afraid of a repeat of two years ago, when Aaron Alexis opened fire at the Navy Yard, killing 12.
Washington Metropolitan Police Chief Cathy Lanier (lah-NEER) says law enforcement learned from that tragedy.
IN: "IT appears...
OUT: ...shots fired."
DUR: 23
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