Tributes paid to journalist Christopher Hitchens
He had been suffering from oesophageal cancer.
Tony Blair described him as "a complete one-off, an amazing mixture of writer, journalist, polemicist, and unique character".
The author Salman Rushdie, a friend, paid tribute to him on Twitter after the announcement of his death.
"Goodbye, my beloved friend. A great voice falls silent. A great heart stops," he wrote.
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