Iraq's key port closed again after six protesters killed by security forces

Iraqi security forces have shot dead six anti-government protesters in central Baghdad as weeks of deadly unrest showed no signs of abating.

Anti-government protesters set fire and close streets during ongoing protests in Baghdad. Source: AP

Six protesters have been killed in Baghdad after Iraqi security forces opened fire as the demonstrators tried to remove barriers blocking their march to the city's centre.

The bloodshed came as protesters in the south forced the country's main port to close once again, hours after services had resumed following days of closure.

Iraqi security forces try to disperse anti-government protesters during ongoing protests in Baghdad. Source: AP

Demonstrators have been trying to reach Baghdad's Green Zone, which houses government offices and foreign embassies.

Along with the six killed, at least 41 protesters were wounded as security forces fired live rounds and tear gas to disperse the march in downtown's Rashid St, where the central bank is located, security and medical officials said on Thursday.

The protesters were trying to remove barriers near two bridges that lead to the west bank of the Tigris River.

Now all bridges leading to the Green Zone have been blocked by security forces.

Tens of thousands of people have taken to the streets since last month in the capital and across the largely Shi'ite south to demand sweeping political change.

Iraqi security forces opened fire, killing six protesters during the recent clashes. Source: AP

The protesters complain of widespread corruption, a lack of job opportunities and poor basic services, including regular power cuts, despite Iraq's vast oil reserves.

More than 250 people have been killed since the unrest erupted on 1 October.