MOSCOW: US accusations that Russia was responsible for cyber attacks against Democratic Party organisations lack any proof and are an attempt by Washington to fan "unprecedented anti-Russian hysteria", the Foreign Ministry in Moscow said.

"This whipping up of emotions regarding 'Russian hackers' is used in the US election campaign, and the current US administration, taking part in this fight, is not averse using dirty tricks," Deputy Foreign Minister Sergei Ryabkov said on Saturday in comments posted on the ministry's website.

Ryabkov also said Moscow reiterated an offer to Washington, first made last year, to hold consultations on fighting cyber crime together.