ADDIS ABABA - Gunmen from South Sudan have killed 28 people and kidnapped 43 in neighboring Ethiopia, a government official told Reuters on Wednesday.The raids on Sunday and Monday occurred in Gambella's Gog and Jor areas, which border South Sudan's Boma region, said Chol Chany, a regional government spokesman."Murle bandits carried out the attack. They fled along with 43 children," Chany said, using a term for a local ethnic group. "The (Ethiopian military) is pursuing them. The assailants haven't crossed over to South Sudan yet."