1.   Demonstrators lobbed bricks, bottles and firebombs, while police fired tear gas and powerful blasts from water cannons.

2.   Demonstrators lobbed hundreds of firebombs.

3.   Dozens of protesters and police have been injured and a few killed in protests this year, in which demonstrators lobbed homemade bombs and mounted flaming tire barricades.

4.   Dozens of protesters and police have been injured and a few killed in protests in which demonstrators lobbed homemade bombs and mounted flaming tire barricades.