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Thick fog causes travel disruption in London

Thick fog has caused another day of flight chaos for air passengers. The poor visibility led to 40 flights being cancelled at Heathrow airport, with dozens of cancellations too at London City Airport.

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Met Police helicopter flies high above the fog

Flying high above London's fog today was the Met Police helicopter. The team on board took these stunning pictures of Docklands, and The O2 which is only just about visible.

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