LONDON -- Amy Winehouse was arrested Wednesday in connection with a January video that allegedly shows her doing drugs at a party at her north London home.

London's Metropolitan Police said a 24-year-old woman was arrested on suspicion of drugs possession. Winehouse's spokesman, Chris Goodman, confirmed his client was in police custody.

"Amy Winehouse voluntarily attended a London police station today by appointment. She was arrested in order to be interviewed and is cooperating fully with inquiries," Goodman said in a statement.

"The interview relates to a video handed to police earlier this year," he said.

Britain's The Sun tabloid in January published still images from a video that it claimed showed Winehouse inhaling fumes from a small pipe. The images were said to have been filmed during a party at her home.

Winehouse, who is famous for her hit "Rehab," has had a turbulent private life. Last month she was cautioned by police for assault after she slapped a man during a night out. That means no charges were filed, but the incident was placed on her record.

Shortly after The Sun published still photographs of the video, Winehouse entered a London rehabilitation center.