Brazil has said it will declare a state of social emergency and boost troops on its border with Venezuela in response to an influx of people fleeing the crisis in that country. The government said in a statement that the declaration will free the authorities to allocate infrastructure funds and to put in place humanitarian measures on the Venezuelan border. <br/><br/>Defence Minister Raul Jungmann said, in addition, military assets will be doubled to 200 soldiers. A decree should be signed in the next few days, the statement said. The Brazilian government says that some 40,000 Venezuelans have now fled the economic breakdown and political unrest in their oil-rich country to take shelter in Boa Vista, capital of Brazil's border state of Roraima.