The largest Islamic organization in France issued a fatwa (religious decree) Sunday night, speaking out against participation in the nation's riots.
The fatwa quoted the prophet Muhammad as forbidding inducing damage and endangering lives, Israel Radio reported.
Sarkozy, the French minister of the interior accused Muslim extremists as inciting the violence in order to harm French interests.
The riots, that have spread from Paris suburbs to the heart of the capital and to other areas of the country in the last 11 days, intensified Sunday night. Thirty police officers were wounded in southern France, including two who suffered from gunshot wounds.