Some threw petrol bombs at the riot police, who responded with tear gas and water cannons.
On Tuesday, many of the riot police stationed just outside Red Square were fast asleep.
An hour later the riot police moved in, arresting Mr Navalny and some 260 others.
Some of the anarchists had petrol bombs that snaked through the air falling around the riot police.
Clashes erupted soon afterwards, and the riot police had to use tear gas to keep the two sides apart.
On December 6th another 2, 000 protesters were brutally dispersed by the riot police.
But Mr Lukashenka may also be waiting for the election observers and foreign press to leave before sending in the riot police.
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We witnessed rioters pulling security cameras off the walls and yelping with joy, graffiting the walls, and picking up pavement slabs to throw at the riot police.
The riot police outside the parliament building seem uncertain whether they are there to stop protesters getting in, or to help the protesters stop the deputies getting out.
But in places such as Zahedan, the riot police and Revolutionary Guards are now deployed as much to maintain domestic security as to guard against a refugee invasion from the east.
Walid, who defected from the riot police, is quoted in the report as saying that officers bragged about raping women during raids in the city of Daraa, the birthplace of the anti-regime uprising.
By the early hours of the morning, the hotel had become a conflict zone in its own right as the riot police had managed to push all the protesters up a side street to its right.
Right in front of the lounge bar window, the courtyard was a site of utter chaos - thousands filled the street, as the riot police outside the Shangri-La hotel were violently pushing protesters further into the side streets with tear gas and water cannons.
There were isolated face-offs and quarrels that broke out between demonstrators and the riot police and the Basij militia -- a volunteer paramilitary force that takes orders from the Revolutionary Guard, a military unit under the direct control of Iran's supreme leader.
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Protesting Iranians posted pictures of the rallies, and the reaction of the Iranian riot police and pro-government militia, on the sites.
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After the match, riot police lined the streets outside the ground, roads were closed and a helicopter flew overhead in preparation for further possible clashes as thousands of fans tried to leave the stadium at full time.
That someone who pays for the damages of a riot is the police force for the area.
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Violent disorder means the insurance companies pay up and riot means the police force does.
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He was the only person that turned up to riot but the police took him and the judge jailed him.
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They were undaunted by a tropical downpour and the presence of riot police.
Outside the conference, riot police clashed with demonstrators protesting about war, climate change and a wide range of other issues.
He also learned that it was smarter to stay behind the phalanx of riot police than to stand before them.
The two sets of supporters were separated in one section of the ground by a barrier with riot police gathered on the Manchester United side.
After the army refused to leave, the indigenous guard dragged a group of soldiers from their post on Cerro Berlin mountain, prompting the deployment of riot police.
For a second day Wednesday, pro-Moussavi marchers urged their peers to march silently -- perhaps as a way of keeping a low profile in the face of riot police, witnesses told CNN.
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He says people who thought the violence and division had ended as the Arab Spring swept through the country two years ago now find themselves protesting on the same streets, fighting with riot police and accusing the Islamist-led government of stealing their revolution.
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