Toulouse, France (CNN) -- Authorities are investigating the possibility that neo-Nazis are behind a shooting spree that left three children and a teacher dead at a Jewish school in France, Interior Minister Claude Gueant said Tuesday.That is one of several leads authorities are following after the Monday killings -- the third fatal attack on people from minority groups in the south of France in the space of eight days.
The country's southwest region remained on scarlet alert, the highest possible level, after the teacher and three children were gunned down at the Ozar Hatorah school in Toulouse.
The gunman at the Jewish school wore a camera on his chest during the attack, Gueant told Europe 1 in an interview Tuesday.
The minister said a witness had told authorities about the device. Gueant did not know if the gunman recorded the attack.
France observed a minute of silence in memory of the victims on Tuesday, with President Nicolas Sarkozy marking it at a school in Paris. Read More
