Russia's defence ministry said the S-400 would protect critical infrastructure
Atlantic Resolve launched in immediate aftermath of Crimea's annexation
Former British ambassador reportedly warned that Theresa May was not doing enough to prepare the UK in the event of a 'disorderly' departure from the EU
The declassified version of the report warned that other countries were also vulnerable to attack
Police with sniffer dogs were deployed to railways stations in the north-east of the city, eyewitnesses reported
Local sources present differing accounts of death of Svetlana Rosalina
Yura Yeliseyev was practising parkour when he slipped, his friend says
Russian president Vladimir Putin expresses dismay at ruling and calls for 'open discussion'
The activists plan to release more information taken from accounts linked to senior Russian officials
Moscow denies that its troops are involved in regular ground combat operations
Charity says staff turned up to work to find the doors sealed, locks changed and alarm deactivated
'A landowner could build real estate that a foreign state could take advantage of in a crisis'
Woman’s husband reportedly says she packed insulin in hold luggage as she did not think she would need it
Five Chechen suspects deny killing the Russian opposition leader
Dmitry Zakharchenko has been detained on suspicion of abuse of power, obstruction of justice and accepting bribes
Paramedics announce chauffeur killed instantly