Hundreds of students were involved and police in riot gear had to be called in.
Police in riot gear responded with "blast ball" grenades that release smoke laced with pepper spray.
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Security forces armed with riot gear and water cannons formed a cordon around the protesters.
Officers dressed in riot gear came out to stand in front of the main gate.
They targeted about 30 armored police vehicles and as many as 100 police officers clad in riot gear.
There were hundreds of cops -- some in riot gear, some on horseback.
Dozens of people were arrested after police in riot gear were deployed ahead of a football match in Nuneaton.
Officers in riot gear returned later in the evening and were also attacked.
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Officers in riot gear began making arrests at The Granby pub from 15:20.
They surrendered more than eight hours later after officers in riot gear were called in, the Prison Service said.
Police in riot gear then moved into the park, evicting hundreds of protesters.
About 300 to 350 demonstrators threw rocks and charged a line of about 200 police clad in riot gear.
At intervals along the barricaded roads stood phalanxes of police and more militia in riot gear, including batons and shields.
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One 26-year-old local policeman changing into riot gear said he personally knew perhaps 100 of the protesters he was policing.
On Wednesday, protesters faced off against police in downtown Cairo, with police clad in riot gear chasing demonstrators into alleys.
They ensure television crews are around to cover confrontations between police in riot gear and impoverished Indians in traditional dress.
Two hours later, she was awakened by a SWAT team, in riot gear and carrying assault rifles, who evacuated all the residents.
They were "provocateurs" who forced taxpayers to spend millions of shekels to deploy 2, 500 policemen armed with riot gear to the city.
What the world is seeing is Toronto as an armed camp with a fenced-off no-go zone and hundreds of police in riot gear.
But the police - in full riot gear - do not agree and are ringing the metal barriers that are blocking off the park.
But security forces in riot gear took to the streets Friday in regions of the city that could turn tumultuous after results are announced.
Despite the massive security at Woodhill, there have been numerous assaults on guards who at times have had to put on full riot gear.
Scores of police and state troopers, some in riot gear, tried to clear the streets, and some officers used pepper spray to disperse demonstrators.
The protest led to 25 activists being arrested for trespassing (they were later released), while police officers in riot gear guarded the hotel entrance.
"That's my building, " she said, pointing to an office block surrounded by a line of a mounted police and another line of police in riot gear.
Police in riot gear charged the youths, pushing them back on to the Place de l'Opera where the crowds were gathering, but the situation remained volatile.
Large teams of officers in full riot gear took control of parts of the City of London when they were met by a small number of trouble-makers.
TEHRAN, Iran (CNN) -- Iranian police clad in riot gear dispersed a crowd of demonstrators at the University of Shiraz Saturday by beating them with batons, a video uploaded to Facebook showed.
Another showed that the unrest had spread beyond the capital -- police clad in riot gear dispersing a crowd at a university in the southern city of Shiraz, beating screaming women with their batons.
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Outnumbering protesters three to one, hundreds of Pakistani security force members, some dressed in riot gear, stood behind barbed wire and concrete blocks that blocked off one of the roads leading to Chaudhry's house.
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