WASHINGTON — Another possible case of misconduct involving the Secret Service is under investigation, CBS News has learned.

Two Secret Service agents are under investigation for driving an agency vehicle while under the influence of alcohol and crashing it into a barrier near the White House grounds on March 4.

One holds the number two post in President Obama’s protective detail. The other is a senior supervisor in the Washington field office.

Both agents have been reassigned to desk jobs and stripped of management roles while the Department of Homeland Security’s Office of Inspector General investigates.

The White House first learned of the matter earlier this week when new Secret Service Director Joe Clancy informed the president’s senior advisers.

President Obama is aware of the matter and supports a full investigation.