The vice chair of the National Transportation Safety Board has been abruptly removed from his position, the White House confirmed Tuesday, a rare move that comes as the federal agency charged with investigating aviation disasters juggles more than 1,

The removal of the vice chair of the independent safety board is highly unusual and comes as the agency is investigating several high-profile calamities.

The White House on Monday removed the vice chair of the National Transportation Safety Board, the latest in a series of dismissals by President Donald Trump from independent U.S. government agencies.