The bodies of eight young men were discovered in Cameroon’s restive Northwest Anglophone region, an opposition MP and eyewitnesses have said.

Local residents found the bodies in the bush in the town of Menka. Photos of a dozen dead bodies circulated on social media but could not be independently verified.

The shock finding happened as a court in Cameroon on Friday convicted seven activists from the country’s Anglophone minority of rebellion and acts of terrorism and gave them sentences ranging from 10 to 15 years, a defence lawyer said.

Authorities arrested Mancho Bibixy, a radio presenter in the English-speaking Northwest Region, and dozens of fellow activists last year as part of a crack down on a budding Anglophone secessionist movement by President Paul Biya’s predominantly Francophone government.

One activist was acquitted, Bibixy’s lawyer, Claude Assira, told Reuters, but he said the convictions “would only worsen the … Anglophone crisis”.

What began as a peaceful protest movement in 2016 by teachers and lawyers against perceived marginalisation of the English-speaking minority became an armed conflict last year following violent crackdowns by government forces.

According to Menka residents, the Cameroonian army fended off an attack in the area in mid-May but soldiers returned overnight between Sunday and Monday. Many young people have been missing since then.

“There have been some killings in Menka by the army,” Nji Tumasang, deputy of the first anglophone opposition party, the Social Democratic Front, told AFP.

“We think that at first glance they are civilians because no weapon was found on them. The husband of an activist from our party is among the victims.”

The Cameroonian government did not comment when approached by AFP.