<span style="color: #222222;">In China, at least seven people have been killed and 13 injured in an explosion at a fireworks factory in the Liuyang city of Hunan province.<br />'' <br />'' The city administration said that the blast occurred Wednesday morning due to illegal production.<br />'' <br />'' The administration said, factory managers have been detained for questioning and a team formed to investigate the accident.<br />'' <br />''<br />''Authorities yesterday ordered all fireworks production in the city suspended. </span><br />