Performances of the West End production of Hairspray have been cancelled for 10 days after a team member tested positive for Covid-19.
The show at the London Coliseum, which stars Michael Ball and Les Dennis, has been suspended until 14 July.
"Unfortunately, despite extremely robust measures being in place, a member within the Hairspray company has sadly tested positive for Covid-19," a statement reads.
"We want to reassure all of our audiences that due to the strict processes we have in place at the London Coliseum, this registered case will not have come into contact with anyone visiting the venue and we are confident that we have adhered to all the required health and safety requirements.
"The safety of our customers remains our number one priority. Everyone at both the London Coliseum and in the Hairspray team are so sorry that this means these performances cannot go ahead."
The show opened last month.
It is not the only theatre show to be disrupted - London's Royal Court bosses have announced Seven Methods of Killing Kylie Jenner will be suspended between 5 and 11 July due to "Covid isolation requirements" after a member of their production team tested positive.