At least eight people have been killed by armed militants while collecting water in the town Arbinda in northern Burkina Faso on Monday morning, Mayor Boureima Werem said.
The latest killings raise the total of people killed in three days of violence in the restive area to more than 30.
The town, in the province of Soum has suffered several attacks by Islamist militants linked to Al-Qaeda and Islamic State who have been seeking to take control over an area of arid terrain where Burkina Faso, Mali and Niger meet.
Werem, speaking to Reuters said that militants have been targeting water towers and pumps in recent weeks.
In a separate incident, gunmen killed at least 13 gendarmes in an ambush Sunday at Taparko, a mining town in northern Burkina Faso regularly targeted by jihadist fighters.
The attack came as two people were killed and several others injured when a bus hit a landmine Sunday, also near Taparko.
Burkina has been battling a jihadist insurgency since 2015 that swept in from neighbouring Mali.
(Input from wires)