The Royal Ballet and Opera has scrapped plans to perform Tosca at the Israeli Opera in Tel Aviv next year following staff opposition.
Almost 200 staff members had signed a petition calling on the organisation to cancel current and future productions, and boycott institutions that support a state "engaged in the mass killing of civilians" in Gaza.
The decision to pull the production was first reported by the campaign group Artists for Palestine UK, which said that CEO Alex Beard had told staff last week that "we have made the decision that our new production of Tosca will not be going to Israel".
Beard on Monday confirmed the news in an interview with The Guardian, telling the newspaper: "I am appalled by the crisis in Gaza and recognise the deep emotional impact this has had across our community and wider society. On this issue, we acknowledge and respect the full range of views held by our staff, artists and audiences."
The open letter was signed by 182 staff members, including dancers, singers, musicians and staff across artistic, creative, technical and administrative departments.
They expressed "deep concern and moral conviction in response to recent actions and decisions taken by The Royal Ballet and Opera in the context of the ongoing genocide in Gaza".
A spokesperson for the Israeli Opera expressed "great regret" at the decision, according to Haaretz.
It came days after a performer displayed a Palestinian flag during a curtain call at the Royal Opera House.
The petitioners condemned the director of opera, Oliver Mears, who attempted to snatch the flag and reportedly told the performer that he would never work for the institution again.
The letter called for Mears to be "held accountable for his public display of aggression".