<span style="color: #222222;">At least 10 people were killed and 19 others injured in an explosion at a gas plant workshop in China's Yima city. According to local officials, the incident happened around 6 p.m. yesterday and the injured were sent to the hospital. <br />''<br />''The official said explosion did not involve tanks of dangerous materials and the investigation into the cause of the accident is underway.</span>