Justin Vela: "Some demonstrators tried to flee while others surged forward pulled apart the barricade.
The police pulled the barricade back and a water truck rolled forward, firing into the crowd.
Everyone fell back as tear gas and rubber bullets were fired.
The demonstrators threw rocks and beer bottles at the police.
The nozzle of the water truck was turned 75 degrees to blast a group of cameramen who where filming on top of a truck.
Tear gas and rubber bullets were fired on the stone throwing demonstrators for about fifteen minutes before things calmed down and demonstrators again gathered around the barricades."