The US State Department has issued a stronger warning to its citizens against traveling to Japan due to the coronavirus situation in the country.
The US on Monday raised its travel advisory level for Japan by one notch to the highest on its four-tier scale -- "Level 4: Do Not Travel."
It cited the latest update from the Centers for Disease Control and Prevention, which says, "Travelers should avoid all travel to Japan."
The CDC warns, "Because of the current situation in Japan even fully vaccinated travelers may be at risk for getting and spreading COVID-19 variants."
Bloomberg reported that the move is a fresh blow to a country struggling to convince its own public and the international community that it is ready to host the Summer Olympics.
As of Monday, about 150 nations and territories had the highest travel advisory level on the State Department's list.