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Colombia riots: Clashes in Bogota after farmer protest

30 August 2013 Last updated at 10:16 BST

Three police officers were shot after a march in support of striking farmers in Colombia's capital, Bogota, escalated into violence.

Tens of thousands of people took to the streets to back farmers who claim the government's agricultural policies are driving them into bankruptcy.

Geeta Guru-Murthy reports.