This morning, many Secret Service agents were hospitalized after being exposed to an unidentified chemical during a traffic check near the Vice President’s office in Washington.

During a traffic check right outside the Eisenhower Office building, which is located just one block from the West Wing of the White House, the officers were exposed to a “powdery material.”

The victims were carried to a hospital for assessment, while the driver was detained.

The Secret Service said the officers’ treatment was only ‘precautionary evaluation.’

‘Shortly before 11am, Secret Service Uniformed Division officers made a traffic stop in the 1700 Blk of New York Avenue,’ the Secret Service said in a statement to DailyMail.com. ‘During the stop, officers came in contact with a powdery substance believed to be suspected narcotics. One individual was taken into custody and officers were transported to an area hospital for precautionary evaluation.’

The Washington, DC Fire Department responded as well.

After a suspicious item was discovered in the office of Mississippi Representative Bennie Thompson, a part of the Rayburn House Office building, which is next to the US Capital building, was sealed down the same day.

The US Capital Police said that a letter with ominous language was analyzed for the presence of harmful chemicals.

The office was reopened after determining that the letter posed no threat.