Early risers have gathered across the UK to celebrate the summer solstice.

The official start of astronomical summer was marked at Stonehenge in Wiltshire by more than 20,000 people.

Many gathered at beaches, including Roker Beach in Sunderland, for picturesque swims. In Hornsea, East Yorkshire, a rather foggy outlook didn't dampen the spirits of bathers.

The exact timing of the solstice, at 09:24 BST, is when the northern hemisphere of the planet is tilted at its maximum towards the sun.