Zayn Malik Hospitalized with Mystery Illness

 has shared a worrying hospital snap on Instagram on Friday where he revealed he is 'still recovering' from an unknown illness.

The singer, 33, was set to appear at Circuit, Kingston at 9pm on April 13 for a special One Night Only show playing new tracks from his new album KONNAKOL.

After falling 'sick', concert promoter Banquet Record announced on Instagram the disappointing news that the show had to be postponed. 

Days later, Zayn revealed he is still being treated in hospital as he thanked fans for their understanding. 

He wrote: 'To my fans – thank you to all of you for your love & support now & always. Been a long week and am still unexpectedly recovering. 

'Heartbroken that I can't see you all this week, I wouldn't be in the place I am today without you guys and am so thankful for your understanding.'

'Thank you to the incredible hospital staff of Drs, nurses, cardiologist, management, admin and everyone who has helped along the way and continue to.

'You are all legends! Big big love xx z. [sic]'

Announcing Zayn's postponement, they wrote: 'Gutted to say Monday's ZAYN events are postponed due to illness - we send our best wishes to him for a speedy recovery.

'We'll be back to ticket holders later in the coming week. thanks for your understanding and sorry again for the disappointment'.

The statement continued: 'You can read a message from Zayn below.'

Zayn's message read: 'I'm really sorry but unfortunately I am sick and I won't be able to make it to the UK this week as planned.

'We're already in the process of trying to reschedule the Banquet Q&A and will be sharing new dates soon.

'Working on getting each of your info as well to send you something.

'Thank you for your understanding and continued support. Big Love xx Zayn.'

The organisers then went on to explain that people unable to attend the rescheduled date could request a refund when it was announced.

But they urged fans to not contact them before then.

They added: 'Of course if the events are cancelled you will of course be refunded.'

Fans sent their well wishes to the star but many were left feeling disappointed by the news and it seems many were already travelling to see the 1D star. 

They wrote: 'Currently in the airport lowkey sobbing; Literally at the airport :( so sad. But of course get well soon zayn;