SEOUL, Nov. 12 (Yonhap) -- A South Korean man kidnapped by an armed group in Libya in July has been confirmed to be in good health amid "various activities" to win his release, a government official here said Monday.

The South Korean foreign ministry official cited consultations with the Libyan authorities on the matter.

"(They) confirmed that our national, held hostage in a southern Libyan region, remains safe and healthy," the official told reporters, requesting anonymity.

Regarding efforts to rescue him, the official said there are various moves but would not elaborate.

A South Korean government delegation recently visited Libya for meetings with top officials there on the matter, a diplomatic source said.

The government is preparing to take administrative measures against South Koreans staying in the Northern African nation.

South Korea has imposed a travel ban on the country, in which 30 South Koreans reside.

Twenty six of them submitted applications for permits to keep using their passports but the government rejected them on Oct. 16.

It plans to issue an order for them to return their passports or nullify them in accordance with a related law if they stay there through this weekend.

The South Korean worker and three Filipinos were kidnapped on July 6 in an attack on a water project site in western Libya.

Source: Yonhap News Agency