huge cyber-attack which knocked out more than 2,000 websites in the country of Georgia last year was carried out by Russia, according to Georgia, the UK and the US.
The UK government says that the GRU (Russian military intelligence) was behind the "attempt to undermine Georgia's sovereignty".
Foreign Secretary Dominic Raab described it as "totally unacceptable".
Russia's Foreign Ministry denied any involvement, the RIA news agency said.