Police raid Winehouse's London home

LONDON, Nov. 8 (UPI) -- Police raided the London home of British singer Amy Winehouse Thursday, arresting four men at separate locations during the same operation, but gave no details.

Ranging in age from 19 to 25 the men were arrested at addresses in east London on allegations of perverting the course of justice.

Winehouse was not arrested, however, and police declined to explain why her house in northwest London was targeted, People.com reported.

Officials would only say, "Investigations are ongoing."

Local press reports said Winehouse and her husband, Blake Fielder-Civil, did not seem to be home at the time of the raid.

A representative for Winehouse had no immediate comment, People.com said.

The singer and her husband have made international headlines in the past year while reportedly battling addictions to drugs and alcohol.