The original decree stipulated that everyone over the age of 18 who was physically fit could be called up.

It also said people's rights and freedoms could be curbed and it legalised the setting up of local defence groups.

Correspondents say there have been cases where critics of Burkina Faso's military rulers have been abducted and forcefully recruited to help in the fight against the Islamist militants.

Since 2015 more than two million people have been displaced by the jihadist violence.