Former Prez Obama sanctioned over Moscow's alleged hacking activities in US presidential election
Putin said Russian diplomats returning home and will spend holidays with friends and family
Trump had harshly criticised the spy chiefs earlier
US intelligence agencies concluded that Russia's goal was to help Donald Trump win
Obama had accused Putin of ordering a cyber attack that damaged Clinton's chances in the elections
Obama has all but accused Vladimir Putin of personally ordering an audacious cyber hack
The Russian foreign ministry said it regretted the new sanctions
An end to cooperation would mean suspending establishment of the Joint Implementation Centre
John E Hayten said Russia's aggression in Ukraine and destabilising actions in Syria take place under a nuclear shadow
It also expressed concern about the humanitarian situation in Crimea
John Kirby said that on June 6, a Russian policeguard attacked an accredited US diplomat entering the US embassy compound
China and Russia have been saying for months that THAAD would tip the balance of power in the Pacific towards the US
The incident came just weeks after Moscow and Washington traded accusations over a similar maritime encounter in the same area