"President-elect Donald J. Trump today announced that he intends to nominate US Senator Jeff Sessions to serve as Attorney General and US Rep. Mike Pompeo as Director of the Central Intelligence Agency. Lt. Gen. Michael Flynn has been selected to be the Assistant to the President for National Security Affairs," the statement said.
The statement confirmed earlier reports that Sessions, Flynn and Pompeo would be nominated for the positions.
Trump praised Alabama lawmaker Sessions as a great legal mind and attorney. Sessions was an early supporter and advisor for the Trump campaign.
Prior to serving in the Senate, 69-year old Sessions was US Attorney General for the Southern District of Alabama and Alabama Attorney General.
Trump said Flynn would be an invaluable asset to the administration's goals of defeating terrorism and protecting US interests at home and abroad.
Following recent concerns over his consulting firm's ties to foreign clients, Flynn said he would sever relations with the company if he returned to government service.
Kansas Republican Pompeo was elected in 2010 and serves on the House Intelligence Committee and Energy and Commerce Committee.
He is a fierce critic of President Barack Obama and opposes the Iran nuclear deal and the closure of the military detention center at Guantanamo Bay, Cuba.
Trump stressed that Pompeo would be a "brilliant and unrelenting leader" as CIA director.
All three men accepted the positions, according to the statement.