4 South Koreans freed after being kidnapped in Nigeria

SEOUL (AP) - Four South Korean construction workers who were kidnapped in southern Nigeria have been freed.

The four employees of Hyundai Heavy Industries were preparing for the construction of factories when they were abducted by unidentified gunmen Monday in Bayelsa state.

Seoul's Foreign Ministry said in a statement on Saturday that the South Koreans were released on Friday local time after "persistent persuasion." It did not disclose details of the negotiations.

The statement also provided no details about a Nigerian worker who was kidnapped along with the South Koreans. The ministry department handling the case did not answer calls. Hyundai said it had no information.