At least ten people experienced chest pains, vomiting, and sweating after a suspicious package was found in the mail room of a Kansas City, Missouri IRS building on Friday, according to Fox 4 Kansas City. At least four ambulances were on the scene and two people had to be carried out of the building on stretchers, CBS News reported. Police are still trying to open the package safely, but said there is no powder or substance on the outside and that the 8×12 envelope smells like ammonia. The package has been quarantined, and police said there is no need to evacuate the entire building.