Berlin police used a water cannon to cool thousands of Bruno Mars fans waiting outside the Olympiastadion as temperatures climbed towards 40°C during Europe's ongoing heatwave.

Long queues formed hours before the concert, with many fans seeking shade and drinking large amounts of water to cope with the extreme heat.

Across the city, residents and tourists cooled off in public fountains while parts of central Berlin were unusually quiet as Germany experienced some of its highest temperatures of the year.

Fans described the heat as far more intense than they had expected, with some saying they had already consumed several litres of water before the show.