Police have erected a fence around the steps of the Ecuadorean embassy in London ahead of an expected news conference by Julian Assange.
A police officer could be heard arguing with a someone who emerged from the embassy about whether the pavement was public or private property.
"Police can deal with it, not you," the officer said. "Let me call the council then," he replied.
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Witnesses reported hearing a "huge bang" at the venue during the concert on Monday evening.
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