The Associated Press is reporting a plane crashed into a seven-story office building in north Austin this morning.  Dawn Clopton, a division chief with the Austin Fire Department, says two people from the building are still unaccounted for following the crash of a small private plane into the building.

Fox News is reporting the NTSB has reason to believe the crash was a purposeful act and the pilot may have specifically targeted the building which houses offices of the Internal Revenue Service (IRS). 

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