Japan has commenced the construction of an underground ice wall at the defunct Fukushima nuclear plant as part of its efforts to stymie the spread of radioactive contamination.

An official from Tokyo Electric Power (TEPCO) has confirmed the commencement of work on a 1.5-kilometre underground ice wall at Fukushima just a week after obtaining the green light for its construction from Japan’s Nuclear Regulation Authority. “We started construction of the frozen earth wall this afternoon,” a TEPCO representative announced at an official press conference…