One person was reportedly exposed to a suspicious white powder after an envelope containing the substance was delivered to Downtown Brooklyn's Supreme Court building. According to the Daily News, the letter was sent to Justice Abe Gerges, who is currently presiding over a case involving a Staten Island doctor accused of selling steroids, and ruled earlier this week that state officials can use eminent domain in the controversial Atlantic Yards development.

Investigators are reportedly testing the powder to determine whether or not the substance is harmful. Authorities evacuated the 24th floor of the building, and police scanner dispatches indicate that one person who was "exposed" to the powder "has been decontaminated." It's unclear if Gerges—a former City Councilman—was the person who was "exposed" to the powder.