Frankie Boyle has launched a scathing attack on Prime Minister Theresa May, and Jeremy Corbyn’s challengers.

Boyle, 43, published a lengthy Facebook post in which he hit out at Angela Eagle and Owen Smith and appeared to sympathise with Corbyn.

In a post titled "MAD TING. SAD TING", he blasted Eagle’s ability to be leader and mocked Smith’s policy making.

“Angela Eagle withdrew from the leadership race. There was nothing about her that suggested leadership – she looks like she’d shriek every time Putin entered a room and has the voice of a Collie locked in a hot car,” he wrote.

“Owen Smith was head of policy for Pfizer, but despite his best efforts there still aren't enough drugs in the world to make his election seem like a good idea. Smith looks like his most radical policy will be not wearing a tie to the park.”

Boyle defended Corbyn as he took swipes at May and joked he had reconsidered his stance on Trident after May appointed Boris Johnson – who he said would have been “wedgied clean in two” at a comprehensive school – as Foreign Secretary.

He wrote: “The Parliamentary Labour Party is trying to replace Jeremy Corbyn after ten months, showing all the patience of Prince waiting for his paracetamol to kick in.

“We’re told Corbyn is useless, then he manages to put together a more competent cabinet out of his billiards partner, an ex-girlfriend, mirrors, and some masking tape than May did with the entire back catalogue of fee-paying education’s finest.”

Addressing reports of bullying within the party, Boyle continued: “It's weird to see the media cast him as a bully, and it might just be a simple case of projection. At the moment he’s re-enacting a Spanish bullfight. He’s a beige bull staggering around an allotment with a couple of dozen swords sticking out of him, heroically whispering, ‘Who wants a courgette, I’ve got a glut’.”

The comedian said Labour is the only political party “reflecting the mood of the country, by loathing each other” and said "Labour MPs are selling a sort of nihilism".

"There are a lot of people in Britain who need radical ideas, because the status quo for them is simply not survivable," he said, before adding that Labour will find it “very difficult” to persuade those people that there is a “non-radical solution”.

Corbyn – who has launched his leadership campaign – last month suffered a series of dramatic resignations from his shadow cabinet and saw MPs vote by 172 to 40 in favour of a motion of no confidence in him.

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