A statement early Sunday announced the closing of mosques operating outside control of the Religious Affairs Ministry and places of worship that celebrated the killings last week of 15 Tunisian soldiers near the Algerian border.
The government also announced the closing of unlicensed TV and radio stations that call for jihad and declare some people infidels.
On Saturday, police arrested some 60 suspected Islamist radicals in sweeps through numerous regions.
The crackdown follows the attacks on two army posts on Mount Chaambi by an extremist group believed linked to al-Qaida’s North Africa arm.