Several suburbs of the Tunisian capital, Tunis have witnessed anti-government demonstrations this year.
Protestors say the administration of President Kais Saied is failing to tackle inflation and rising prices for staple goods.
Videos on social media from the Douar Hicher district show supermarket customers scuffling over packets of sugar.
In one district on the outskirts of Tunis riot police fired tear gas to disperse protesters who had blocked roads and were throwing stones at officers.
The demonstrators were angry at the suicide of a local man who had allegedly been harassed by police for selling fruit without authorisation.