No group has said it carried out Monday's kidnapping of 82 people, most of them students, in Cameroon's North-West region.

Cameroonian authorities blame Anglophone separatist militias - militias who have called for the closing of schools in Anglophone regions.

These militias have threatened anyone who defies their orders not to go to school.

A video of some of the children, believed to have been filmed by one of the kidnappers, has been circulating on social media.

In identical and seemingly rehearsed statements, the students each introduce themselves and mention that they were kidnapped by "Amba Boys" - the widely-used term to describe the separatist rebels.

An Anglophone group, the Ambazonia International Policy commission (AIPC), has cast doubt on the idea that the perpetrators are the separatists, noting that that the person recording the video appears to have a poor grasp of Pidgin-English, the language spoken widely in the Anglophone area of the country.

At one point, a voice in the background, which is believed to be of one of the kidnappers, says what sounds like "tu perds ton temps" - French for "you're wasting your time".

This has sparked speculation on social media that the kidnapping might have been staged to appear as if it was carried out by the English-speaking Cameroonians.

This kidnapping is the latest atrocity in this conflict where each side is blaming the other.