Police discovered the body of a second South Korean hostage July 31 slain by the Taliban in central Afghanistan, officials said.

The Taliban, meanwhile, threatened to kill more hostages if their demands were not met by Aug. 1.

The man's body was found on the side of a road at daybreak in the village of Arizo Kalley in Andar district, some 10 km west of Ghazni city, said Abdul Rahim Deciwal, the chief administrator in the area.

The South Korean Foreign Ministry identified the victim as 29-year-old Shim Sung Min, a former information technology worker who volunteered with a South Korean church group on an aid mission to Afghanistan.