Suspected jihadists killed 16 villagers in northern Burkina Faso on Monday in an incident highlighting the increased presence of Sahel-based Islamists in the area, local and security sources said.

The gunmen came to Pobe-Mengao, about 200 km (160 miles) north of the capital Ouagadougou, threatening to take way children and telling villagers to help them buy weapons, a security source told Reuters.

When they refused, they were shot dead, the sources said. A security source told Reuters that the death toll had reached 16.