The widow of former Russian spy Alexander Litvinenko has said she fought for a public inquiry for "justice and truth."
Using the name her husband's loved ones knew him as, Marina Litvinenko told reporters: "For me it is very important because there is a lot of speculation about why Sacha died and what happened. I want to finish the speculation about his death."
She added: "It is very difficult to say what I feel exactly now but I was waiting for this day.... I'm for justice and truth."
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The boyfriend of the 25-year-old victim is in police custody following a manhunt in Arctic conditions of -30C.
Some dense fog is likely in the southeast, whilst brighter breaks are possible across eastern Scotland, northern England and north Wales.
When asked if he was joking or not, Mr Biden paused briefly before saying: "I’m not committing not to run. I’m not committed to anything."