Japanese authorities detain Paris Hilton at airport

Celebrity socialite Paris Hilton arrives at Narita International Airport, east of Tokyo September 21, 2010. Hilton was held for questioning by officials at Tokyo airport on Tuesday where she had flown for business one day after pleading guilty to possessing cocaine in Las Vegas. Picture taken September 21, 2010. [Photo/Agencies] Related Photos: Paris Hilton arrives at the courtroom at the Regional Justice Center in Las Vegas Paris Hilton departs from Japan

socialite Paris Hilton was held for questioning by officials at Tokyo airport on Tuesday where she had flown for business one day after pleading guilty to possessing cocaine in Las Vegas.

Immigration officials at the Narita International Airport detained Hilton for hours after her chartered plane landed there, and then asked Hilton to stay overnight at an airport hotel for more questioning on Wednesday before allowing her to enter the country, according to Japanese media reports.

"Paris Hilton was delayed by immigration authorities at a Japanese airport this evening after arriving for business obligations planned many months earlier," Hilton's Los Angeles-based spokeswoman said in a statement.

"Paris was contractually bound to her business trip and didn't want to let down her brands and many Asian fans. She intended on fulfilling her contract and is trying hard to do the responsible thing, but this is beyond her control," the statement said, adding Hilton was "very disappointed."

On Monday in Las Vegas, Hilton pleaded guilty to cocaine possession following a recent arrest in which she was found to have 0.8 grams of the drug in a purse. She was given a one-year suspended sentence, fined $2000 and ordered to complete community service.

The 29 year-old former star of reality TV show "The Simple Life" is a member of the family that founded the Hilton hotel chain, and she has parlayed her notoriety into a successful career endorsing products in fashion, fragrances and other industries.

Hilton had been scheduled to appear at a fashion show on Wednesday in Tokyo's high-end Roppongi district that is filled with restaurants and nightclubs, but the show was canceled.