Good Morning Britain host Kate Garraway has revealed that her husband Derek Draper is still in a "deeply critical condition" after contracting coronavirus.

The 52-year-old was hospitalised 18 days ago after testing positive for COVID-19 and is believed to have been in intensive care ever since.

Garraway has remained largely silent on social media while her husband fights for his life but took to Instagram on Thursday night to share an update on his condition.

"From the bottom of my heart a billion thank yous to the extraordinary #nhsworkers whose skills, dedication and downright guts in the face of so much personal risk , are keeping my Derek alive , just as they are doing for thousands of covid patients," she wrote.

"I'm afraid he is still in a deeply critical condition, but he is still here , which means there is hope.

"Sending so much love and support to the thousands who have had that hope for their loved ones stolen by this hideous disease. You are not alone and I hope that helps give you strength to withstand the torture of grief.

"Thank you, too, to my own little band of 'key workers' , the neighbours who let off fireworks tonight for the #nhs , gave the Easter bunny a helping hand to make life feel a bit more normal for Darcey & Billy, those who have dropped off food, and friends family and all of you who have sent messages of love and support. It's such a comfort.

"We must all stand together. #clapthecarers #love #hope"

More than 2.1 million people worldwide have now tested positive for coronavirus, including over 100,000 in the UK.