As many as 21 people were killed and 8 others critically injured in the cracker unit blast here in Kakinada district on Saturday, February 28, Andhra Pradesh Minister Kandula Durgesh said This is the biggest blast in the state. Full details are yet to come. There is no chance that anyone would survive. Some people are undergoing treatment, he said. He further said officials are inquiring into the cause of the fire, which led to the blast. All workers belong to poor sections of society. The chief minister will certainly make a decision on supporting the families. “But we can not bring back lives. It has come to my knowledge that there is a lot of stock in the unit (at the time of the blast). So even a minor accident may turn into a major one as all are explosive in nature,” he said.