Around 400 indigenous Warao people from the Orinoco Delta in Venezuela have arrived in the Brazilian city of Manaus in the Amazon.
The authorities have declared a social emergency to seek government funds to help with the influx.
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The Bolivian government has declared a state of emergency in a vast agricultural area affected by a plague of locusts.
President Evo Morales has announced a contingency plan, which includes $700,000 in extra funds for fumigation.
At least 45 people have been killed in a suicide bomb attack in the north-eastern Nigerian town of Madagali in Adamawa state, officials say.
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Zimbabwe's ruling party has been accused of deliberately withholding aid from opposition supporters in areas facing starvation because of drought.
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This study provides a snapshot of refugees’ experiences regarding communication and information at different points on their journey, based on interviews with 79 refugees and 45 humanitarian actors. Intended to inform humanitarian agencies responding to the refugee crisis in Europe, it examines the communication behaviours and priority information needs of refugees in three areas: on their journey, in “transit” camps in Greece, and in Germany.