Suspected Islamist Boko Haram militants have killed 15 sleeping people and wounded six others in a grenade attack in northern Cameroon, reports say.
A security source and a local official told the Reuters news agency that the attackers targeted a camp for displaced people in the village of Nguetchewe, close to the border with Nigeria.
The victims - including women and children - were asleep when the assailants arrived.
Boko Haram has been fighting in north-east Nigeria for over a decade but has also been active in Cameroon, Chad and Niger. A regional military operation has failed to stop the attacks.
Donkey cart attack
Meanwhile, in northern Burkina Faso at least six people, most of them children, have been killed after a donkey cart ran over an improvised explosive device (IED) in a region which has seen many jihadist attacks.
A security source told a French news agency that four other people were injured and had been taken to a hospital in the nearby Ouahigouya town.
The victims were returning from grazing with their animals.
Since 2015 Burkina Faso has seen an upsurge in Islamist violence – spreading from Mali - and more than 1,000 people have been killed and a million have fled their homes.