British multinational bank Barclays has been in discussions with regulators about bringing digital currencies like bitcoin into service, CNBC reported citing the bank's UK chief executive Ashok Vaswani.

But Assad insisted it was "not clear whether it happened or not, because how can you verify a video? You have a lot of fake videos now."

The Russian Football Uni-on has been officially warned by UEFA that the national team will be expelled f-rom Euro 2016 if Russian fans are involved in more violent episodes. In addition, the federation has been fined €150,000 ($168,000).