A top Russian television presenter as claimed Donald Trump is 'more dangerous' than Kim Jong-Un as he warned the world 'was a hair's breadth from nuclear war'.

Dmitry Kiselyov, the pro-Kremlin anchor of Russia's main weekly TV news show 'Vesti Nedeli', said support for Trump had plummeted in his country since his election win.

He added that Trump's decision to launch a missile strike against Syria, a Russian ally, and to drop a giant bomb on Afghanistan had prompted a U-turn in Russian opinion.

Kiselyov, who once praised Trump for his 'independence' from the US political establishment, slammed the American as 'more impulsive and unpredictable' than his North Korean counterpart.

A top Russian television presenter as claimed Donald Trump (left) is 'more dangerous' than Kim Jong-Un (right) as he warned the world 'was a hair's breadth from nuclear war'

Dmitry Kiselyov (pictured), the pro-Kremlin anchor of Russia's main weekly TV news show 'Vesti Nedeli', said support for Trump had plummeted in his country since his election win

'The world is a hair's breadth from nuclear war,' he said. 'War can break out as a result of confrontation between two personalities; Donald Trump and Kim Jong-Un.

'Both are dangerous, but who is more dangerous? Trump is.'

He added that both men had 'limited international experience, unpredictability, and a readiness to go to war'.

Observers pointed to the free rein enjoyed by Kiselyov as a reflection of the Kremlin's anger at Trump's 'failure' to deliver on his pledge of better ties with Moscow.

During the show, Kiselyov said Kim Jong-Un was less scary than the US president because he had not attacked other countries or sent a naval armada to the US coast.

'[Kim] is after all on his home territory. He doesn't plan to attack anyone just for the sake of it,' said Kiselyov.

Kiselyov (shown receiving a Medal of Friendship during an award ceremony at the Kremlin) once praised Trump for his 'independence' from the US political establishment

Delivering a personal jibe, Kiselyov sarcastically told viewers that the North Korean leader's young daughter did not, unlike Ivanka Trump, have an office in her father's official residence.

Other state-controlled and pro-Kremlin media have walked back their initial euphoria for Trump in recent weeks too, but Kiselyov tends to set the tone for everyone else and his intervention is the most robust on Trump yet.

Polls suggest state TV's U-turn over Trump has filtered through to the public, most of whom get their news from television sets.

A survey by state pollster VTsIOM showed on Monday that the percentage of Russians who hold a negative view of Trump has jumped to 7 from 39 per cent.

'The US missile strike on Syria was a "cold shower" for many Russians,' said Valery Fedorov, the pollster's general director.

'Donald Trump's aggressive behaviour has resurrected distrust and ill-will towards America, something that has characterised Russian society for the last two decades.'