A French Islamic convert who threatened his home country has been captured in northern Mali, allegedly after fighting on the militants' side.

French troops captured Gilles Le Guen, who now goes by the name Abdel Jelil, on Sunday night north of Timbuktu, the army said.

Mr Le Guen, 58, is believed to have been living in Timbuktu.

France's Defence Minister, Jean-Yves Le Drian, said he appeared to have fought alongside Islamist militants.