At least 23 people have been killed in some of the worst fighting for years in Iraq's capital, Baghdad, sparked by a critical leader's decision to quit politics. 

Radio Islam International discussed with Iraq's researcher and analyst, Ruba Ali Al Hassani, who described Muqtada al-Sadr as the boy who cried wolf, saying it is not the first time al-Sadr has resigned from politics, as he has done it several times over the past few years.

She says Al Sadr had his followers storming into the Iraqi parliament over the past few years.