JUBA, Sudan, June 30 (Reuters) - South Sudan ordered Ugandan troops to leave its territory on Monday, saying it wanted to avoid "mistakes" as the soldiers hunted rebels from the Lord's Resistance Army (LRA).

"The government of southern Sudan will not allow the UPDF to make military operations (against) the LRA in southern Sudan territories," south Sudan's Vice-President Riek Machar said. "If there are any forces in Sudan that are UPDF, these should move back to Ugandan territory."

Machar said the decision was taken to to avoid "mistakes of the past", saying Ugandan soldiers had abducted and killed a south Sudanese man during anti-LRA operations this month.