Ukraine security services (SBU) has blamed Russian security services for recent virus attack on the country, Reuters news agency reported on Saturday.
Ukrainian banks, companies, main airport in Kiev and government network were hit by a massive cyber attack that swept across the world earlier on Tuesday.
SBU added the hackers who attacked Ukrainian energy system in December 2016, are responsible for the recent attack.
The cyber attack came just a few weeks after the "WannaCry" virus hack, which affected more than 150 countries and regions and infected over 200,000 computers.