Adnan Abou Walid Saharaoui, spokesperson for the jihadist group Movement for Unity and Jihad in West Africa, or Mujao, said the amputation was carried out on Wednesday in the village of Ansongo.
Authorities had accused the man of stealing a motorcycle.
Mali’s north was overrun by a mix of rebel groups including several allied with al-Qaeda following a coup in Mali’s capital in March.
Since June, Islamists have exerted full control of the northern half of the country and have imposed Shariah law. They recently stoned an adulterous couple to death.- AP