The robbery happened on the unit block of M Street NW about 2:45 a.m. Monday, police said.
Authorities haven’t released further information about how the man committed the robbery or what he took.
Robbery Gun at  hrs in the [Unit] b/o [ M street NW] LOF 1 B/M 5'6" 18-22 yrs old Med skin dreads white T-shirt CALL 911 W/ EVENT # I…
— dcalerts (@dcalerts) August 24, 2015
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