TOKYO - A Japanese oil tanker arrived in Japan on Monday, becoming the first to transit the Strait of Hormuz since the start of the Iran war, which has left traffic through the vital energy route heavily restricted.

The tanker, operated by a unit of major refiner Idemitsu Kosan Co., brought 2 million barrels of crude, equivalent to about 80 percent of daily domestic demand, to Aichi Prefecture in central Japan, according to sources close to the matter.

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