Since 2014, Cameroonian armed forces have carried out operations against Boko Haram in the country’s Far North Region. Cameroon has the right to regulate the presence of non-nationals on its territory, including those proven to be threat to its national security. The authorities also have an obligation to carefully investigate attacks in Cameroon by suspected Boko Haram members. However, it may not block refugees from seeking asylum and summarily deport them.

After staying publicly silent on the situation for two years, in late March, UNHCR publicly criticized the authorities for their mass forced refugee returns. The criticism was triggered by deportations after Cameroon had signed an agreement that month with Nigeria and UNHCR confirming that it would ensure that all refugee return was voluntary.

As of mid-September, the Cameroonian authorities had allowed UNHCR only to pre-register asylum seekers in some border communities, leaving those pre-registered and tens of thousands of other asylum seekers without access to meaningful protection and putting them at risk of deportation.

The Cameroonian authorities deny any forced return or abuse of Nigerian asylum seekers and have not replied to a Human Rights Watch request for a response to the report’s findings. Cameroon has had a reputation as a generous country toward refugees since the early 1970s and it has hosted tens and then hundreds of thousands of refugees since then.

“Faced with overwhelming evidence of mass refugee abuse and UN condemnation, Cameroon is trying to bury its head in the sand,” Simpson said. “But returning tens of thousands of Nigerians to harm and destitution will only further shred its well-deserved reputation as a generous refugee-hosting country.”