Protests entered a seventh day on Saturday

Protesters and security forces clashed in several Iranian cities on Thursday, with six reported killed, the first deaths since the cost-of-living demonstrations broke out.

Supreme leader Ayatollah Ali Khamenei on Saturday acknowledged the economic demands of protesters in Iran, where demonstrations have spread to more than two dozen cities, even as he warned there would be no quarter for "rioters".

At least four people were killed in western Iran on Saturday in clashes between protesters and security forces, two rights groups said, accusing Revolutionary Guards of opening fire on demonstrators.