A fire broke out following an explosion at a chemical plant in the Badalpur area of Greater Noida early Sunday morning, officials said, adding around two dozen fire tenders were pressed into service. The fire at the Shri Banke Bihari Chemical Plant on Dujana Road was put out after more than seven hours of intense fire fighting, the officials said, adding no one was injured but the factory has suffered massive damages. It was not immediately clear what caused the fire. Chief Fire Officer (CFO) Pradeep Kumar said the blaze broke out around 3 am and the factory workers tried to douse it using the equipment they had at their disposal, but it could not be contained. The workers evacuated the premises and the fire department was informed. A thick column of black smoke, visible from a distance, billowed into the sky from from the factory. Locals said the fire started following an explosion at the chemical plant. Deputy Commissioner of Police Shakti Mohan Awasthi, said, "We received ...