The Spanish city of Pamplona is in the midst of its annual bull run with many photographers on hand to catch the priceless expressions of the people taking part.
The bull-running event, which sees thousands of participants chased through the streets of the city by up to six specially breed fighting bulls, is the most famous part of the annual San Fermin Festival, which dates back to the 16th century.
Scores of people are injured each year as participants run along the 850 metre course from a holding pen to Pamplona's bull ring and 15 people have died since records began in 1924.