Visakhapatnam (Andhra Pradesh): One worker was killed and 14 others were injured in an ammonium tank explosion in Srikar Pharmaceutical Company at JN Pharma City in Parawada near Visakhapatnam on Tuesday, police said. The tanker burst around 11 a.m. when about 20 workers were cleaning ice near the ammonium tank. The liquefied ammonium fell on the workers. A wall also collapsed under the impact, police said. One worker, identified as Ramakrishna, died while being shifted to the hospital. The condition of other two is stated to be critical. The joint chief inspector of factories visited the factory and started a probe. The district administration shifted all the injured to the district headquarters hospital and local corporate hospitals for better treatment.