Rufus the Wimbledon hawk hit the headlines last year when he was stolen but he is back hard at work at this year's tournament and even has a new hood in purple and green to match his surroundings.
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Thousands of passengers now face delays, with Southeastern trains warning "all services" would be affected.
Paramedics attended a scene in Willesden, north-west London, on Monday afternoon where they found the teenager with stab wounds.
At least five people have suffered minor injuries but the cause of the blast is still unknown.