Iraq protests see four more killed, scores wounded

The killings occurred when Iraqi security forces fired tear gas at protesters occupying key bridges in Baghdad.

Medical and security sources said some of the protesters were killed by live fire and tear gas canisters aimed directly at their heads.

Hospital sources said some of the wounded sustained wounds from live ammunition and others from rubber bullets and tear gas canisters.

Protesters have constructed makeshift barricades on three major bridges in central Baghdad which lead to the city's fortified Green Zone, where government buildings and foreign embassies are located.