Amy Winehouse has reportedly been put on alert that she may be kidnapped by acquaintances of husband Blake Fielder-Civil’s fellow prisoners.

An inside source to the News of the World, “Blake’s petrified. He’s living in fear for Amy’s life AND his own.

“At first he thought the guys in here were just trying their luck but the threats have got really bad. He’s now under no illusions and convinced they’ll go through with what they say.”

“They’ve ordered Blake to pay £100,000 into a secret bank account within the next few days or else…Amy will be snatched and harmed.”

“She’s at her weakest right now, and what with her wandering the streets in the dead of night she’s at massive risk.”

“Blake knows it’ll be easy to bundle her off in a car without anyone batting an eyelid.”

Blake is said to have been moved to an isolation unit within Pentonville prison over the last few days for his own safety - and he hopes for Amy’s too. The source explained: “Blake’s so scared of these toughs trying to strongarm him that he’s had meetings with his legal representatives demanding they put pressure on officials to keep him safe.”

“In this isolated unit .. the guards will be keeping a much closer eye on him. Plus the guys who are threatening to abduct Amy can’t get to him there.”

“So he’s hoping that it’ll be case of out of sight, out of mind, and the faces who are out to get at him will find someone else to pick on.”