The explosion happened in Sourou province near the Mali border as students returned to school after the Christmas holidays, a security source said.
Burkina Faso, bordering Mali and Niger, has seen regular militant attacks which have left hundreds dead since the start of 2015 when militant violence began to spread across the Sahel region.
Mohammed Bin Rashid marks World Refugee Day by ordering aid flight to support delivery of UNHCR’s humanitarian assistance to Burkina Faso. Assistance includes 88 tons of core relief items for displaced people and 12 tons of COVID-19 aid.
This joint operation, presented on Saturday by the two armies' top commanders as the first of its kind, took place northeast of the Ivorian town of Ferkessedougou and south of Banfora in Burkina Faso.