Russian state television has claimed US President Donald Trump is more dangerous than North Korea's supreme commander, Kim Jong-un, in an apparent indication that Moscow's opinion of the Republican has shifted.

State media in the country greeted the election of the bombastic property tycoon in November warmly, yet decisions by Mr Trump since coming into office have seen the two administrations come into conflict.

Relations slid after Mr Trump dropped a bomb on Afghanistan, accused Moscow of seizing Crimea by force and launched a missile strike against forces belonging to Russian ally Bashar al-Assad.

News presenter Dmitry Kiselyov who is known for his pro-Kremlin stance, said on his weekly TV news show 'Vesti Nedeli': "The world is a hair's breadth from nuclear war.