Protests have been ongoing since July in southern Iraq, as high temperatures combined with a lack of electricity and water have actually increased discontent among the population.

According to Basra's health department, at least 17,000 people have been admitted to hospital as a result of polluted water since 12 August.

In the latest twist, protesters blocked the entrance to Iraq's Umm Qasr commodities to demand better services.

This move came only a few hours after stone-throwing protesters set fire to the main provincial government building in the oil hub of Basra.

Reports also indicated that the highway from Basra to Baghdad was cut off by demonstrators.

Potential disruptions to oil production could severely impact Iraq's limping economy.

Iraq has been struggling to rebuild its economy after the war with the Islamic State that cost tens of billions of dollars.

Umm Qasr receives Iraq's grain, vegetable oils and sugar shipments.

Earlier, on Wednesday, Iraqi security forces opened fire on protesters as the two sides clashed for the third day in Basra.