British officials say the Russian military intelligence unit GRU is behind a fresh wave of global cyberattacks.

Foreign Secretary Jeremy Hunt said Thursday the GRU is responsible for “indiscriminate and reckless” attacks against political institutions, businesses, media and sports.

Britain’s National Cyber Security Center has concluded that hackers behind numerous attacks have been identified as GRU personnel. The agency says four new attacks are associated with GRU as well as earlier cyberattacks.

It cites attacks on the World Anti-Doping agency, Ukrainian transport systems, the 2016 U.S. presidential race and others as very likely the work of the GRU.

British officials earlier blamed the GRU for the March nerve agent attack on Russian ex-spy Sergei Skripal and his daughter Yulia in the English city of Salisbury.

Russia denies any involvement.
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