Russian President Vladimir Putin said Russia will stand up for itself but not at the cost of confrontation from the outside world.
Speaking to members of parliament in Crimea he added: "We need to consolidate and mobilise but not for war or any kind of confrontation ... for hard work in the name of Russia."
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Nearly 38,000 runners will hope to complete Sunday's London Marathon making it the biggest event in its 35-year history.
Rain across central Britain with longer, intense downpours with thunder in places this evening. A lucky few will stay sunny and dry.
Planning on going to the London Marathon tomorrow? Read our handy guide first!