The London home of singer Amy Winehouse has reportedly been raided by police.
According to reports, a number of officers searched the singer's home but she was not arrested as a result of the raid.
Neither Winehouse nor her husband Blake Fielder-Civil were at the house at the time of the raid.
Four unidentified men were later arrested at a different address in London as part of the same investigation. They were reported to have been arrested for perverting the course of justice.
A police source reportedly said that the raid and the arrests are "part of an ongoing operation".
