Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Hungarian Prime Minister Says Sludge Reservoir Wall 'Likely' to Collapse VOA News 09 October 2010 In this photo made available 09 Oct 2010, police and army officials are helping during the evacuation of western Hungary's village of Kolontar, 08 Oct 2010 Photo: AP In this photo made available 09 Oct 2010, police and army officials are helping during the evacuation of western Hungary's village of Kolontar, 08 Oct 2010 Hungary's prime minister says the wall of a sludge reservoir that burst and flooded several towns with toxic waste is "very likely" to collapse. Viktor Orban said the reservoir wall is showing visible cracks. He said about 500,000 cubic meters of the corrosive material would be released if the wall falls. Orban made the comments Saturday after authorities evacuated Kolontar, which is near the damaged reservoir. Hungarian authorities say Monday's reservoir break released some 700,000 cubic meters of caustic mud. Hungarian Interior Minister Sandor Pinter said Friday the escaped sludge has not affected the drinking water supply and was not a threat to the Danube River. However, the environmental group Greenpeace said tests showed a high concentration of heavy metals in the sludge and arsenic levels twice as high as what is normally found in aluminum plant runoff. The sludge has devastated three Hungarian villages west of Budapest, the capital, and killed seven people. More than 120 people have been injured. The Hungarian aluminum company that owns the plant where the spill occurred has rejected criticism that it failed to take proper precautions at the reservoir. Interior Minister Pinter said authorities have begun questioning witnesses to the spill to learn about the reservoir's operations and maintenance procedures. Some information for this report was provided by AP and Reuters. .