At least eight Kenyan cattle herders were killed Friday during raids with rival groups close to the Ethiopian border, an area hard hit by extreme drought, an official said. "There was an attack, and eight people have been killed, three others have been injured," said a police official, who requested anonymity. Some 200 cows were also stolen during the clashes which took place between rival Merile and Turkana people in the village of Todonyang. Clashes between rival cattle herding pastoralist people in the region are common, with herders often carrying guns to protect their animals. There is a history of violence between the Turkana and the Merile, whose lands straddle the Kenyan border with Ethiopia. Over 12 million people are affected by one of the worst droughts for decades in the Horn of Africa, hitting Kenya and Ethiopia as well as Somalia, Uganda, and Djibouti.