John Barrowman has been left unable to move after being rushed to hospital with a 'severe neck injury.'

The I'm A Celebrity star, 52, was forced to cancel a string of his A Fabulous Christmas live shows over the weekend, in Bristol and Glasgow respectively as he has been left unable to move.

The Scottish-born, Illinois-raised actor - who played Captain Jack in Doctor Who - explained in a statement on Saturday that he is currently in hospital awaiting a diagnosis.

John took to Instagram on Saturday to share a promo photograph for his A Fabulous Christmas show and made the worrying announcement to fans alongside.  

He wrote: 'I'm devastated to have to tell you that due to severe neck injury, which has made it impossible for me to sing and move, I've been rushed to hospital for a diagnosis.

'The Doctors have advised me to not perform this weekend while I try and recover, so I've had to make the very difficult decision to cancel my performances at the Bristol Hippodrome on Saturday 30th November and at the SEC Armadillo, Glasgow, on Sunday 1st December.

'I am so dissapointed (sic) and upset as I was looking forward to seeing you all, I feel I am letting everyone down, but it's simply not possible for me to do the show in my current condition.' 

Taking to Instagram on Saturday afternoon, John shared a snap of himself being driven to hospital for an MRI scan.

Sitting alongside husband Scott Gill, the actor was wrapped up in a blue hoodie and knitted cardigan, and gave a thumbs up for the selfie.  

The Desperate Housewives star wrote alongside: 'Heading to hospital for an MRI scan on my neck!

'I’ll Keep you all posted on my progress - Bless you all and thanks for all your good wishes.. JB.'

It as, as yet, unclear how John sustained his injuries.

MailOnline has contacted John Barrowman's representatives for comment. 

The statement, written by Mr Barrowman, was also shared on the Hippodrome's Twitter page, explaining that the shows have had to be cancelled. 

The Hippodrome also explained that ticket holders wanting to exchange their tickets for tonight to Saturday 14th Dec at Oxford New Theatre should call 0333 096 690, otherwise they will receive a refund from their point of sale.

The worrying news about John's hospitalisation comes just two weeks after he debuted his short grey hair on Extra Camp.

The star was unrecognisable, leaving viewers divided over his new look with many branding him a 'silver fox,' while others claimed the hairstyle 'aged him.' 

The actor had previously sported lusciously thick dark raven locks, usually styled into a side-swept look.  

John appeared on Sunday night's spin-off alongside This Morning's Alison Hammond to give his opinion on this year's campmates, after the launch show had aired'

But viewers were stunned when he sang out his well-known catchphrase: 'Fab-u-loussss!' after making a dazzling entrance, as they'd failed to recognise the star.