Military police cordoned off part of the high school at the U.S. Yokota Air Base in western Tokyo on Tuesday following the second false bomb threat in less than a week.
The base said it found nothing at an outdoor water fountain at the school -- the location where the message, written in English, said the bomb was planted -- or its vicinity.
With your current subscription plan you can comment on stories. However, before writing your first comment, please create a display name in the Profile section of your subscriber account page.