Sources close to the investigation of Japanese actress Erika Sawajiri say she has admitted to using illegal drugs for some time.
Police sent Sawajiri to prosecutors on Sunday after arresting her the previous day on suspicion of possessing illegal substances, including the synthetic drug MDMA.
The sources say the 33-year-old has admitted that the drugs found at her apartment in Tokyo are hers.
Police are analyzing her urine sample and results are expected in several days.
Investigators plan to question her about how she obtained the drugs.