TOKYO, May 8 -- NHK World issued the following news:

Japan's agency in charge of the extension of the Hokkaido Shinkansen line to Sapporo says it will be extremely difficult to open the line at the end of fiscal 2030.

The project aims to connect Tokyo to Hokkaido's capital city of Sapporo in four and a half hours. The construction covers 212 kilometers from Shin-Hakodate-Hokuto to Sapporo and tunnels account for 80 percent of the distance.

Fujita Kozo, the head of the Japan Railway Construction, Transport and Technology Agency, met transport minister Saito Tetsuo on Wednesday. The meeting was held behind closed doors except at the outset.

Fujita said he reported to the minister that it will be extremely hard to meet the opening target d...