Residents hold on to a floating plastic cover in a neighbourhood flooded by the Acre river, which continues to rise from weeks of heavy rainfall in the region including northern Bolivia, in Rio Branco, Acre state March 4, 2015. More than 2,000 people have been left homeless along the Bolivian-Brazilian border where incessant rains have flooded the area and caused the Acre and Tahuamanu Rivers to burst their banks. [Photo/Agencies]