Striking opera house workers at Milan's prestigious La Scala have forced the cancellation of a performance on Sunday of Giuseppe Verdi's "Macbeth" conducted by Russian maestro Valery Gergiev, the theatre said in a statement.
The strike was called by the three main trade unions at the opera house and ticket holders were told Thursday they could attempt to change their booking for a later date or seek a reimbursement.
Giancarlo Albori, a member of Italy's main CGIL union, was quoted by local media as saying: "We have been working more and earning less. We want clarity on the artistic and economic fronts."
La Scala has seen months of industrial action and was forced to cancel the opening night of its season in December last year when performers in the ballet "Romeo and Juliet" went on strike.