Many protesters marched carrying supplies of lemons and milk, to soothe the effects of tear gas.
Despite its heavy use Dr Haji says, exposure to tear gas is "massively under reported".
The police said it was an illegal gathering and fired tear gas to disperse the crowd.
Three days later security forces cleared the site using tear gas, batons and birdshot.
Perhaps it was the report that Iran was firing tear gas into crowds of young people.
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Police on Saturday used tear gas and rubber bullets on demonstrators who vandalized cars and shops.
Yousif said police descended on the mourners and fired tear gas, flash-bang grenades and birdshot.
Security forces have frequently responded by firing tear gas to disperse the protesters or arresting them.
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By nightfall, police were battling some 20, 000 protesters with tear gas and water cannons.
Some threw petrol bombs at the riot police, who responded with tear gas and water cannons.
The troops responded with tear gas and other riot dispersal means, the military said.
They take the battle to the enemy, trapping him and blinding him with tear gas.
Riot police fired tear gas as the two sides pelted each other with stones.
He was cornered near Big Bear Lake and incendiary tear gas was fired in.
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This time, riot police weren't called out in force and no tear gas was deployed.
Now, they are "stepping up the brutality" by firing tear gas and live ammunition, she said.
Chicago police broke up a protest outside the Hilton hotel with tear gas and clubs.
The images in early May of tear gas and angry mobs in Athens still loom large.
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Cops in Athens unloaded tear gas on protesters who tried to surround the parliament building.
"The military fired tear gas and rubber bullets to try to disperse us, " he said.
The cabin caught fire when police shot tear gas canisters into it, McMahon told reporters Wednesday.
The cabin caught fire during a shootout and standoff with police, who also fired tear gas.
In Tunis, police fired tear gas to disperse protesters who had gathered outside the interior ministry.
At times, protesters clashed with security forces, who fired tear gas into the crowds.
When the protesters headed back to the streets, they were met by more tear gas.
The discontented police threw tear gas that directly reached President Rafael Correa who was lightly harmed.
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Some demonstrators threw stones and petrol bombs at police, who responded by firing tear gas.
In Greece police used tear gas to control farmers calling for even more subsidies.
Jawaher Abu Rahmeh died this morning after inhaling tear gas yesterday in Bil'in demonstration.
Several hundred protesters gathered in Amman and were dispersed by police using tear gas.
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