Japanese authorities are doing what U.S. authorities should've done long ago, and possibly kick her out of the country.
They are trying to decide whether she will be admitted to the country after pleading guilty to a misdemeanor drug charge in Las Vegas.
An e-mailed statement by Hilton's rep, Dawn Miller, said the 29-year-old was stopped by immigration authorities upon her arrival Tuesday in Japan.
Hilton was scheduled to appear at a news conference in Tokyo on Wednesday to promote her fashion line, but that appearance was apparently canceled.
Narita Airport's immigration office questioned Hilton "for hours" to determine if she should be allowed to enter the country, the Tokyo Regional Immigration Bureau said, according to Japan's Kyodo news agency.
Authorities adjourned questioning and asked Hilton to stay at a hotel in the airport so they could continue immigration procedures Wednesday, Kyodo reported. There was no answer at the immigration office early Wednesday morning.
Under Japanese law, immigration authorities are empowered to deny entry to those who have been convicted of drug-related offenses.
On this trip, Paris was scheduled to visit several other countries, including Indonesia and Malaysia.