Thousands of protesters hit the streets in cities across Syria on Friday, billed as a "day of martyrdom", to demand political reforms.<br /><br />However, gunmen in plainclothes attacked the crowd and fired live ammunition, killing a girl and injuring many others.<br /><br />The Syrian state news agency accused "armed gang" for the firing, while the government has ordered an inquiry into the incident.<br /><br />Al Jazeera's Cal Perry reports from capital Damascus.