A major explosion was reported at an oil refinery in Visakhapatnam, Andhra Pradesh, with massive flames and thick smoke engulfing the area. A fire broke out at HPCL's Visakhapatnam refinery, triggering panic in nearby areas. Officials suspect a possible explosion, with details awaited. A massive blaze erupted at a sulphur pitch tank, triggering panic among nearby residents in Visakhapatnam.