Images taken on 17 February, 2018, show water flooding Barcarena, a city in the Para state, in the Amazon region of northern Brazil. Residents of Barcarena complain of suffering from diarrhoea, stomach pains and skin itching since a record amount of rain reportedly cause a bauxite residue disposal reservoir to spill last February 16, 2017. The pool waste belongs to the Alunorte aluminium refinery, owned by Norwegian aluminium firm Norsk Hydro.The company denies that there was any spill or contamination, but on a statement recognised that it used a canal to discharge rainwater from the factory into the local river on the occasion. "Rainwater from the refinery area may contain bauxite dust and traces of caustic soda, but the water had not been in contact with the bauxite residue deposit areas," reads the company statement. According to the local people, during the storm, red-coloured water flooded their houses and contaminated the region. Following the incident, residents that live in the area around the waste pool started to feel the symptoms. Hydro says that the basic infrastructure in Barcarena is poor and not functioning and that most of the symptoms "are related to lack of sanitation and tropical diseases." On the days following the incident, the Evandro Chagas Institute (ECI), a research institute linked to the Brazilian Health Ministry, performed experiments on water from the rivers and the flooded areas around the waste pool that supposedly flooded last February. The results showed that the waters of Barcarena are contaminated with aluminum.According to a researcher from the ECI, the symptoms that the population are complaining about may be caused by an aluminium contamination. Although there is still no conclusive research proving the connection between the diseases reported in the area and the contamination. On an interview via email, Norsk Hydro said that the water in Barcarena is indeed "not good, but there can be many sources that led to this contamination." They also stated that they hired an environmental agency, SWG Services, to conduct an "independent review" of the situation. After the reports of the spill and contamination, the Brazilian Institute of Environment and Renewable Natural Resources (Ibama) - an environmental agency that belongs to the Federal government - conducted research in the area - together with the ECI - and fined Norsk Hydro 20 million reals (Around €5 million / $6.13 million) for operating without a license. They also ordered the company to stop using one of its waste pools. When contacted, Ibama did not confirm neither the spill nor the contamination of the area. "Ibama does not have evidence to confirm that there was a contamination and how big it was," read the statement. This is not the first time that Norsk Hydro is being accused of environmental damages. In 2009, a spill, where water with red mud and bauxite residue overflowed the drainage channels around a deposit, contaminated the area. By that time, Hydro Norsk had a minority stake in the company, which was controlled by Brazilian Vale. The lawyer from the Association for Caboclos, Indigenous and Quilombolas of the Amazon (Cainquiama) Ismael Moraes, who represents communities around the refinery, issued a lawsuit against Norsk Hydro in November 2017, asking for compensation of 500 million reals (€125 million / $153 million) for damages caused to all the surrounding communities throughout the years. Via email, Norsk Hydro confirmed the existence of the process, but added that the company does "not comment on ongoing lawsuits." The photos are distributed by the Evandro Chagas Institute (ECI), which is investigating an alleged spill from a waste pool that is part of the Alunorte aluminium refinery, the world's largest aluminium refinery, owned by Norwegian aluminium firm Norsk Hydro. Photo credit: Evandro Chagas Institute