A police officer can be seen in the live video feed from a camera worn by one of the climbers at the top of The Shard. It is not clear whether any of the protesters have been arrested.
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The lender, which is the worst affected by the PPI mis-selling scandal, said it has also set aside £150m for other conduct issues.
Vodafone has been fined £4.6 million by the industry regulator for "serious and sustained" breaches of consumer protection rules.