Ladies Day at Ascot

Damp racegoers Credit: PA

Racegoers at Royal Ascot Ladies Day are likely to need their umbrellas as today's rain threatens to put a dampener on the event.

The Met Office has issued a yellow weather warning for London and the south east as the longest day of the year gets off to a wet start.

A thunderstorm is forecast for 2pm, when the Queen is due to travel to the racecourse in a horse-drawn carriage.