A French tourist has been kidnapped in Algeria by a militant group linked to Islamic State (IS), French Foreign Minister Laurent Fabius has confirmed.
Herve Gourdel, 55, was seized on Sunday in the unsettled north-east Kabylie area.
Algerian militant group Jund al-Khilafa threatened to kill him if France did not halt air strikes on Iraq.
Mr Fabius said an online video that showed Mr Gourdel flanked by armed men was authentic.
He said France would do everything it could to liberate Mr Gourdel, but that the situation was “extremely critical.”
Earlier, Islamic State militants warned they would target France – and other countries – after French jets launched air strikes in Iraq against the group.