By Kate Ward
Updated September 21, 2010 at 04:41 PM EDT

The Associated Press reports Paris Hilton has been barred from entering Japan one day after pleading guilty to drug possession in Las Vegas. Upon her arrival in Japan — where she had planned to appear at a news conference to promote her fashion line — the socialite was detained by immigration officials. Whether or not Hilton will continue the rest of her promotional tour, which is supposed to take her to Indonesia and Malaysia, is not known.

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