US President Donald Trump refused promising that an investigation, led by Robert Mueller, into allegations of Russia’s meddling in 2016 American presidential elections, would not be shut down, the US leader said in an interview with CBS television channel.

"I don't pledge anything," Trump said. "But I will tell you, I have no intention of doing that. I think it's a very unfair investigation because there was no collusion of any kind."

"Do you really think I'd call Russia to help me with an election? Give me a break," Trump stated. "They wouldn't be able to help me at all. Call Russia. It's so ridiculous."

The FBI and the intelligence committees of the US Senate and House of Representatives have been pursuing a probe into Russia’s alleged interference in the 2016 US presidential election led by Special Counsel Robert Mueller

In connection with the investigation, which has been going on for more than a year, charges have been brought against several Russian citizens, as well as against five Americans and one Dutch national. On July 13, US Deputy Attorney General Rod Rosenstein announced charges against another 12 individuals who were said to be Russian intelligence officers.

US President Donald Trump and the key members of his team have been repeatedly rejecting all the accusations concerning collusion between the Trump campaign and Russia. Moscow has also been refuting these allegations.

On July 16, Russian President Vladimir Putin reiterated at a joint press conference with his US counterpart Donald Trump that Moscow had not meddled in election processes in the United States and was ready to cooperate with Washington within a joint working group on cybersecurity.