British singer Winehouse taken to hospital (AFP)

LONDON (AFP) - Troubled British Grammy award-winning singer Amy Winehouse was taken to hospital Monday after fainting at her London home, her spokesman said.

Her father Mitch took the 24-year-old soul singer to a private hospital as a precautionary measure after she collapsed.

"Amy was at home this afternoon when she briefly fainted," said her spokesman, adding: "Fortunately, her manager's assistant was there to stop her falling.

"She quickly recovered and her father, Mitch, took her to hospital as a precaution. Doctors are unsure of the cause of the incident and Amy is currently undergoing tests."

He added: "She may be kept in overnight for observation."

Winehouse's father has voiced his concerns about her lifestyle and a video obtained by a newspaper this year appeared to show her taking cocaine and ecstasy.

Her husband, Blake Fielder-Civil, faces a jail sentence after admitting attacking a pub landlord and conspiracy to pervert the course of justice.

The soul singer won five Grammys in February for her "Back to Black" album and the single "Rehab".