Ten Internal Revenue Service employees in Kansas City were sickened after coming into contact with a suspicious package, according to Kansas City Department spokesman James Garrett, speaking to local reporters. The television station reports that at least seven people were taken by ambulance to be treated.
KMBC-TV reported that the suspicious package had a scent of ammonia.
Police are trying to figure out the best way to open the package to see what's inside. He believes emergency crews could be on the scene for one to three hours.More news: Kraft Heinz posts 50.5 pct rise in quarterly profit
The Federal Protective Services, a division of the Department of Homeland Security that responds to terrorism and criminal acts against US government infrastructure, opened an investigation after responding to IRS building Friday morning, Homeland Security spokeswoman Lucy Martinez said, The Associated Press reported.
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The package arrived at the building early Friday morning, though investigators haven't determined it's what caused the illnesses.