At least 28 people have been killed in the latest outbreak of clashes in south Sudan's Lakes state, a military spokesman said on Tuesday. More than 35 civilians and soldiers were wounded in the clashes between tribes and which also pitted tribes against the military since Thursday in the state's Cueibet area, Major General Kuol Diem Kuol told a foreign news agency. "On the side of the civilians, there were more than 21 killed in the clashes and more than 30 are wounded," said Kuol of the southern Sudan Peoples Liberation Army (SPLA). "There are seven SPLA killed, including two officers, and seven wounded in action," he added. Fighting began after the Gok Dinka people were attacked by rival Rek Dinka, with the Gok Dinka then trying to break into a weapons store in Cueibet to retrieve guns collected in a disarmament campaign, he said.