As this article (in French) notes, three North African leaders (the Presidents of Algeria and Mauritania and the King of Morocco) have been in France for several weeks.
Algerian President Bouteflika, as we knew, has been in Paris since late April, when he suffered a "minor stroke," from which he is
Mauritanian President Mohamed Ould Abdel Aziz has been in Paris as well on a "private visit" since attending a meeting in Brussels on May 15. There is speculation about his health as well; you may recall that last October he was wounded when his own Army shot up the Presidential motorcade in a "tragic accident" which was discovered after the President had "accidentally" been shot five times. He received lengthy treatment in France for that as well.
And King Muhammad VI of Morocco is also on a private visit to Paris since May 10. While there have been recent rumors about the King's health as well (though he's not yet 50), he may be avoiding the political issues at home produced by the Istiqlal Party's intention to withdraw from the ruling coalition.
Of course, they may all just love Paris in the springtime. But who's watching the store at home?