According to a video posted on a local jihadist group’s Facebook page, the emaciated victims said they would be killed if the ransom was not paid.
Canadian tourists John Ridsdel and Robert Hall, Norwegian resort manager Kjartan Sekkingstad and Filipina Marites Flor were seized from yachts at a marina in the southern Philippines in September.
While the ransom amount was not specified, the militants in an earlier video demanded one billion pesos for each of the three foreigners, without mentioning the conditions for Flor’s release.
Hall identified their captors as members of the Abu Sayyaf, a local group notorious for bombings and kidnappings that has pledged allegiance to Islamic State jihadists in Iraq and Syria.
He said they were being held on Sulu, a remote island in the country’s southwestern tip that is a known Abu Sayyaf hideout.
Canadian and Belgian officials, when contacted, declined to comment.