Andry Rajoelina

Madagascar’s President Andry Rajoelina has appointed an army general as his new prime minister, in what appears to be a last-ditch attempt to quell the youth-led demonstrations that have shaken his government for nearly two weeks.

In a late-night address from the presidential palace on Monday, Rajoelina announced the appointment of Divisional General Ruphin Fortunat Dimbisoa Zafisambo, promising a “clean, fast-working” administration ready to “save Madagascar.”

But on the streets of Antananarivo, the capital, anger shows no sign of cooling. Hundreds of young protesters — many mobilized through social media — once again marched toward the city center, only to …