Revellers at Royal Ascot spilled out onto the street as they were spotted heading home on the hottest day of the year so far.

Drinks were flowing in the scorching heat and many racegoers were looking a little worse for wear after leaving the venue.

Even King Charles was seen adjusting his tie in the tropical conditions as other racegoers cooled down with magnums of champagne and old-fashioned fans.

And the going was stifling for the horses, who were doused in buckets of water as forecasters warned of a four-day heatwave set to see Britain turn hotter than Hawaii – with 34C (93F) expected in the South and East this weekend.

Royal Ascot, known as the jewel in the crown of the UK racing calendar, will welcome hundreds of thousands of punters during the five-day meet.