Initial reports suggest the woman jumped from the Randolph Towers apartment building, at 4001 9th Street N., and landed on a car on 9th Street.
The woman has died, according to police radio traffic. Investigators are on scene trying to determine from where the woman fell.
A witness tells ARLnow.com the woman jumped from the top of the building, wearing only underwear and socks.
A man died after jumping or falling from the Randolph Towers in April 2011.
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Photo courtesy @zippychance