Donald Trump's candidate to be the next Secretary of State, Rex Tillerson, has said he wants to review whether Cuba should have been removed from the US list of state sponsors of terror.

Mr Tillerson told a Senate confirmation hearing he would advise Mr Trump to veto any bill passed by Congress lifting the US trade embargo on Cuba.

The former chairman of the oil giant Exxon Mobil also acknowledged that climate change posed enough of a threat to warrant action and called for "a frank dialogue" with Russia after its resurgence - which he blamed on "the failures" of the Obama administration.