Paris Hilton has arrived back in the United States after being denied entry to Japan.

The 29-year-old was stopped at Tokyo's Narita International Airport on Tuesday night, the day after she pleaded guilty to possessing cocaine in Las Vegas.

A spokesman at the immigration bureau declined to say whether she had been barred or was leaving of her own will.

The socialite had been due to take part in a fashion show and promote her perfume with sister Nicky.

She said: "I'm going back home and I look forward to coming back to Japan in the future. I'm really tired."

Paris Hilton arrived in Japan on a chartered plane.

She spent the night at a hotel in Tokyo and was questioned for six hours by immigration officials, according to local media.

She told fans following her on Twitter: "About to take off. Going home now. So dissappointed (sic) to miss my fans in Asia.

"I promise to come back soon. I love you all! Love Paris xoxo."

Japan has strict immigration laws that bar entry to those convicted of drug offences, although exceptions are occasionally granted.

The star was arrested in Las Vegas last month.

Police stopped a car she was a passenger in and a small amount of cocaine was found in a purse.

Ms Hilton was fined $2,000 (£1,286), ordered to complete 200 hours of community service and a drug abuse programme.

She was also told she would be jailed if she was arrested again in Las Vegas in the next year.

Paris Hilton had also been due to visit Kuala Lumpur in Malaysia and open a new retail store in Jakarta, Indonesia.