The Virginian-Pilot is reporting that the Langley Federal Credit Union at 7420 Granby Street was robbed Friday, August 20, 2010 shortly after noon.
The man received an unknown amount of money and fled, Amos said. Shortly afterward, a dye pack with the money exploded.
The description of the man was vague. Police were looking at surveillance camera images to get a description of the man.
Anyone with information can call Crime Line at 1-888-LOCK-U-UP (562-5887).