Engineers rushed to erect an emergency dam to prevent further toxic spill at an alumina plant in western Hungary amid fears that part of the reservoir could collapse for a second time...unleashing another tide of red sludge. Rescue teams warned that the reservoir...could soon give way as recently discovered cracks began to widen. About 1,000 residents from the nearby village of Kolontar were evacuated...About 800,000 cubic metres of red sludge spilt from the reservoir... At least seven people were killed and around 150 injured...[T]here are fears that ecology and communities in the immediate vicinity of the plant could be devastated further if more sludge escaped. Viktor Orban, Hungary’s prime minister...called the disaster an ecological tragedy unprecedented in Hungary’s history, said there would be “very severe” consequences for anyone found responsible. MAL Rt, the Hungarian Aluminium Production and Trade Company, has pledged funds to aid the clean-up but insists it could not have detected or averted the disaster.