In the early hours of Dec. 3, 1984, gas leaked from a tank of methyl isocyanate (MIC) at a plant in Bhopal, India, owned and operated by Union Carbide India Limited (UCIL). The state government of Madhya Pradesh in its official documentation of deaths and injuries reported that approximately 3,800 persons died, 40 persons were with permanent total disability, and 2,680 persons were with permanent partial disability.