Thick fog has caused flight chaos for air passengers and also affected ferry services. The poor visibility led to 40 flights being cancelled at Heathrow, while at London City Airport nearly every early-morning service was delayed or cancelled.
Officers on board one of the Metropolitan police's helicopters has taken these stunning pictures of London today as parts of the UK are hit by fog:
The Democratic presidential candidate may also have shown his cards on his choice of running mate.
The US president also shared a post on Twitter accusing Dr Anthony Fauci of misleading the public over hydroxychloroquine.
Fears over an impending second wave of coronavirus dominates Wednesday’s front pages.