A major fire that broke out at a bio-diesel manufacturing unit in Visakhapatnam Special Economic Zone (VSEZ) in Visakhapatnam on Tuesday evening (April 26) is still raging even as hectic efforts are on to control it, officials said on Wednesday (April 27). Visakhapatnam District Collector N Yuvaraj, who was at the accident site, told PTI that nearly 40 fire fighting engines from Navy, Visakhapatnam Steel Plant, and Port Trust were making all efforts to put out the fire, that erupted at the Bioxmax Fuels Ltd company premises in Duvvada area here at around 7.30 PM yesterday. No casualties were reported in the incident so far, he said, adding that the blaze occurred in the storage area and no worker was present in close proximity of the mishap site. Biomax Fuels Ltd has a manufacturing capacity of five lakh tonnes of bio-diesel from multi-feedstock at VSEZ. The Collector said out of 18 storage tanks located at the site, 12 caught fire. It is expected to be brought under control by this evening as the entire oil in the tanks has to burn completely, he said. The authorities are taking steps to avoid the fire from spreading to six other tanks which are there in the same area, he said. District Fire Officer J M Rao said they were yet to ascertain the cause of the massive blaze..