A 29-year-old man was killed and at least nine others injured during the 'Huamantlada' festival in Tlaxcala, Mexico, when 21 bulls were released to run through multiple city streets. The event, held annually in the town of Huamantla (a colonial-era city in the central Mexican state of Tlaxcala), is considered the world's largest open-road bullfighting festival. The fatality highlights the serious dangers posed by the free-running format, in which participants have little protection from the animals.