Some 20,000 fireworks were let off during the annual Sumida River Fireworks Festival on Saturday, turning the evening sky into a spectacle of dazzling colors.
The festival, an old Tokyo tradition dating from the Edo Period, draws hundreds of thousands of spectators every year. It is one of the capital's major summer events.
The temperature in central Tokyo on Saturday rose to 33.1 degrees, and many visitors were carrying uchiwa fans and eating cups of shaved ice in a bid to stay cool.
As part of the event, the nearby 634-meter-high Tokyo Skytree was illuminated in special colors.
