71.   Their plastic shields and protective helmets stood stacked in some of the vehicles.

72.   Violet flares lit the cloudy sky as riot police with plastic shields raced up adjoining streets, and percussion grenades exploded with stunning booms.

73.   Officer in riot gear and carrying plastic shields to fend off debris and rocks tried to contain the violence by barricading streets.

74.   Officer were deployed in riot gear and carrying plastic shields to fend off debris and rocks.

75.   Riot police with plastic shields stood guard on the streets outside the university campus but there was no violence and the students dispersed peacefully.