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Russian-led regional troops are to be deployed to Kazakhstan, where a state of emergency is in place, following days of protests against the President after days of clashes between demonstrators and security forces.

Lawyers for the world's number one tennis seed Novak Djokovic are challenging the denial of his visa to enter Australia hours after he landed in Melbourne to defend his grand slam title.

China has been steadily expanding its state surveillance network, particularly in Uighur areas of the country - but now there are fears the attention is turning to western social media.