Trump: Lt Gen HR McMaster is new national security adviser
President Donald Trump has named Lt Gen HR McMaster as his national security adviser.
He will replace Lt Gen Michael Flynn, who was fired after just three weeks and three days in the job.
Keith Kellogg, who took over as acting national security adviser after the resignation, will now serve as the National Security Council chief of staff.
Mr Trump announced the appointments at his Mar-a-Lago residence in Palm Beach, Florida.