In a diplomatic spat over their imprisonment, France and Morocco announced Thursday that four French nationals detained in Burkina Faso for a year had been freed after mediation from Morocco.

They were spies, according to a prior statement made by the director of France’s foreign intelligence organisation, the DGSE.

A request for comment was not answered by the DGSE or a representative of the French military, which is in charge of the agency.

Since December 2023, they have been held in Ouagadougou.

President Emmanuel Macron hailed King Mohammed of Morocco on Wednesday for his intervention, “which made possible the liberation of our four countrymen who had been held in Burkina Faso for a year,” according to a statement from the French administration.

King Mohammed and President Ibrahim Traore of Burkina Faso were also commended by Morocco’s foreign ministry, which stated that “this humanitarian act” was made possible by their positive bilateral ties.

In October, France made peace with Morocco, one of its former protectorates, after three years of hostilities between Paris and Rabat stoked by immigration concerns and the disputed Western Sahara region.

Morocco offers Burkina Faso and other military-ruled Sahel republics Atlantic trade.

However, France’s relations with former West and Central African colonies, such as Burkina Faso, remain difficult. In Ouagadougou, French troops and diplomats were ejected, the defence attache and ambassador were asked to depart, and certain French media were suspended.

The military junta that took control in 2022 in Burkina Faso has been criticized by international rights groups for cracking down on free expression and harassing dissidents to handle a security crisis precipitated by Al Qaeda and Islamic State extremists.