<span style="color: #222222;">In China, the death toll in the powerful explosion at a chemical plant has climbed to 64 as a number of people succumbed to their injuries. </span><br />'' <br />'' <span style="color: #222222;">Over 600 persons have been injured in the blast. According to officials, the incident occurred on Thursday following a fire in a fertilizer factory in a chemical industrial park in Jiangsu province. </span><br />'' <br />'' <span style="color: #222222;">According to media reports, executives of the chemical plant province have been taken into police custody after the incident.</span>