The armed group has so far not contacted the government or the company, and has made no demands for the release of the abductee, according to the official. The identity of the kidnappers has not been confirmed.

“As the footage was released, we believe that the kidnappers will make contact and demands,” the official said on condition of anonymity.

A video clip earlier posted on the Facebook account of a major Libyan media company, 218 News, showed those who are believed be the victims asking for help. It is not known when and how the footage was recorded.

In the footage, one of them, who claims to be a Korean, says in English, “Please help me, president, our country South Korea.” Other Filipino victims also sought help, mentioning “president.”

The Korean man appears to be relatively healthy despite his near monthlong captivity, according to the official.

“We have maintained close coordination with the Libyan government with our top priority placed on the life and safety of our people,” he said.

South Korea’s anti-piracy Cheonghae unit is stationed near the Greek island of Crete to help the rescue efforts, according to the official.

(laeticia.ock@heraldcorp.com)