Gunfire in the northern city of Tripoli injured two children on Wednesday when their bus came under fire in al-Rifa area.
The three-day gunfight in Tripoli between supporters and opponents of Syrian President Bashar Assad has so far killed two people and injured 30 others.
The Lebanese army also fortified its presence in Syria street, which separates the two neighborhoods.
According to the state-run National News Agency, new armored personnel carrier were deployed in the city near Abu Ali roundabout.