The San Fermin Festival of Pamplona, a city in the autonomous region of Navarra in northern Spain, officially started with a rocket (Chupinazo) launched from the city hall.
In the run, known as "Encierro," participants wear white pants, t-shirts, and sneakers while tying the red scarf, the symbol of San Fermin, around their necks along the 875-meter route through the city center.
