Amy Winehouse and Blake Fielder-Civil, who divorced last month, have reunited, according to reports.

The singer's father, Mitch, is said to have found his daughter in bed with Fielder-Civil at her home in Hadley Wood, North London.

According to the Sun newspaper, Mitch went round to Winehouse's home after receiving a tip of from the star's security that her ex-husband had reappeared.

He is understood to have thrown Fielder-Civil out of the house, allegedly threatening to “punch his lights out”.

"Blake begged Mitch not to hit him when he chucked him out. Mitch was absolutely furious, he still is,” a source added.

Fielder-Civil, who has been undergoing rehab treatment in Sheffield, has frequently been blamed by Winehouse's family for introducing her to harder drugs.

The couple married in 2007, but Fielder-Civil filed for divorce earlier this year on the grounds of the singer's alleged infidelity.

Last month, Winehouse's mother, Janis, claimed her daughter still loved Fielder-Civil.

Amy Winehouse and Blake Fielder-Civil