Kremlin: Russian theme in US election campaign becomes traditional trick

Allegations that Moscow was behind the hacking of US Democratic Party emails are being cynically used as a tool in the US election campaign, the Kremlin spokesman Dmitry Peskov said.

"We are again seeing these maniacal attempts to exploit the Russian theme in the US election campaign," Reuters cited him as saying.

"This is not breaking new ground, this is an old trick which is being played again. This is not good for our bilateral relations, but we understand that we simply have to get through this unpleasant period."

Cyber security experts and US officials said on Monday there was evidence that Russia engineered the release of sensitive Democratic Party emails in order to influence the US presidential election.