The climate has sparked numerous clashes between farmers and nomadic peoples over access to water.
This sparked fierce clashes between republicans and the police.
Wade backed down on further proposed changes to electoral rules in June after they sparked violent clashes between riot police and protesters in the capital Dakar.
The announcement sparked violent clashes.
The execution caused high tension and sparked clashes in Tenggulan between hundreds of police and supporters.
Allegations of vote rigging had sparked street protests and clashes with the police during which five people lost their lives and hundreds were injured.
The protest sparked violent clashes between demonstrators and police officers in which several students were killed.
Ethnic rivalries have sparked recent violent clashes in China.
The shooting of a Shia Muslim cleric earlier sparked clashes between his supporters and Deobandis.
For years Taiwan blocked his return, sometimes sparking clashes between the police and Taiwanese waiting for his arrival at the airport.