
The sinkhole in Yashio, Saitama Prefecture, has expanded to roughly 40 meters wide and up to 15 meters deep since first appearing on Tuesday, according to local fire authorities. The prefectural government had estimated its width at around 20 meters.
Firefighters plan to deploy heavy machinery inside the hole to remove earth and rubble.
While the trapped 74-year-old man was initially able to speak, communication has been lost since Tuesday afternoon, with the driver's seat of the truck buried in debris.
A sewer pipe running underground in the area was found damaged, leading the prefectural government to start discharging wastewater into the nearby Niigata River late Wednesday as an emergency step to reduce the water flowing into the sinkhole.











Comment: Earlier report: Swimming pool-sized sinkhole swallows truck in Japan, trapping driver inside