Renault stops production at some sites after cyber attack

French carmaker Renault stopped production at several sites on Saturday to prevent the spread of a global cyber attack that hit its computer systems, a spokesman said.

"Proactive measures have been put in place, including the temporarily suspension of industrial activity at some sites," the spokesman said.

The Paris prosecutor has opened an investigation following the cyber attack, a judicial source told Reuters on Saturday. The probe covers "Renault and other possible victims," the source said.