The White House on Wednesday warned it could impose new sanctions on Myanmar if it does not stop atrocities against its own citizens and demanded an investigation into the death of an opposition member while in custody of the military government's security services. “The United States strongly condemns the atrocities committed by the junta and calls for a full investigation into the death of Win Shwe during his detention in Burma,” said national security spokesman Gordon Johndroe. The United States calls Myanmar by its previous name, Burma. “The junta must top the brutal treatment of its people and peacefully transition to democracy or face new sanctions from the United States,” Johndroe told reporters.