Indigenous people point their bows and arrows at a police helicopter flying over the occupied barrier of the Belo Monte Dam's construction site in Vitoria do Xingu, near Altamira in northern Brazil June 15, 2012. The area was occupied by around 300 activists, indigenous people, fishermen and coastal community members affected by the project as they protested against the construction of the Belo Monte Hydroelectric power plant, according to the activists.