Lord Mandelson faces scrutiny over his closeness to Jeffrey Epstein after hailing the US financier as his 'best pal' and sending photos of himself in a bathrobe and topless.

Grinning in a fluffy white dressing gown, Britain's ambassador to Washington is seen relaxing with the disgraced billionaire during a Caribbean break. He wrote a fawning handwritten message saying: ‘We love you!’

On another toe-curling page, he says that no matter where Epstein is in the world, he 'remains my best pal!'

The messages are part of an eye-popping trove of documents made public on Monday night by American lawmakers.

They appear to show gleeful holiday snaps from the ambassador’s visit to Epstein’s private island – dubbed ‘orgy island’ by one of the US paedophile’s sex slaves.