The Phantom of the Opera in London's West End has announced an "extended closure".
The production is already currently closed until at least 2021 due to the ongoing theatre shutdown.
Now the show has revealed that the production will experience an "extended closure" for repairs to both the set and the theatre itself.
A statement reads: "Cameron Mackintosh and the Really Useful Group have over the last few months of the London run and since the enforced closure of The Phantom of the Opera due to Covid-19 undertaken a number of specialist inspections to see how much repair and maintenance work is needed to be done to the physical production and the Theatre.
"The conclusion is that unfortunately, the work is so considerable, a period of extended closure is urgently needed.
"The set of this, the original production, is now over 34 years old and unsurprisingly many of the scenic elements are coming to the end of their natural life which was never envisaged to be as long as this when first built.
"LW Theatres, operator of Her Majesty's Theatre, also need to attend to a number of remedial works on this historic building that for the last four decades has only been able to undertake decorative work."
Producer Cameron Mackintosh added: "It is heart-breaking for me as I am sure it is for all my employees to have all of my productions close down in London and the regions.
"I am determined that my shows, including The Phantom Of The Opera, will come back in 2021 when it is practical, safe and sensible to do so."
It comes amid rumours that the original production may be replaced with alternative choreography and staging plus a smaller orchestra.
Responding to the speculation, composer Andrew Lloyd Webber took to Twitter this week: "I'm doing everything in my power to ensure that when the Phantom returns it is the brilliant original".
Playing in the West End since 1986, The Phantom Of The Opera is based on the French novel of the same name by Gaston Leroux.
It tells the story of soprano singer Christine Daaé who becomes the obsession of a masked musical genius who resides beneath a Paris opera house.