Amnesty International's media director Susanna Flood is tweeting information from Amnesty researchers on the ground in Central African Republic.
Angry mobs rioting round mosque in Fouh, Bangui. Shouting Djotodie must go and Death to Muslims. #CARcrisis. Increasing tension in city.
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Mr Blavatnik, whose empire includes the Warner Music Group, has an estimated fortune of £13.17bn according to the Sunday Times Rich List.
Find out what to expect from the weather if you are running in the big race in London or watching from the sidelines.
It will be a soggy start to the weekend and temperatures will drop making it feel colder than in recent days.