The trailer of the truck was retrieved by rescuers in Yashio city, but a 74-year-old man is still trapped inside the truck and is unresponsive as of Wednesday (January 29), national broadcaster NHK reported.
A second sinkhole opened nearby in the early hours of Wednesday, according to NHK.
Authorities have warned residents of more holes emerging nearby and a potential gas leak, encouraging evacuation within a 200-metre radius of the sinkhole.
