An explosion at a Mitsubishi plant in central Japan has left at least five people dead and injured 17 others.<br /><br />The factory in Yokkaichi City in the Mie prefecture around 350 kilometers south west of Tokyo was being dismantled when the blast happened on Thursday afternoon local time. <br /><br />Emergency services suspect a hydrogen explosion caused by a chemical reaction as plant operators were cleaning heat exchange equipment at the silicone plant. <br /><br />Emergency services were quickly on the scene to extinguish the blaze.
