Gun fire broke out in downtown Beirut on Thursday after Hezbollah leader Hassan Nasrallah said recent government actions amount to "a declaration of open war."
There are reports of open street battles in at least one neighborhood. Video showed people throwing stones at each other, as Lebanese soldiers used tear gas to disperse the crowds.
The violence is limited to Beirut's Shiite and Sunni neighborhoods and has continued into the evening hours. 
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CNN Senior Arab Affairs Editor Octavia Nasr contributed to this report.