The conductor, still recovering from a fall earlier this year, has cancelled the Boston Symphony in November. Andris Nelsons will take over his concerts.

Thursday’s performance of Der Freischütz at Hamburg State Opera was stopped when the conductor, Christof Prick, fell ill and was rushed to hospital.

An 35-minute interval was called. But since no other conductor was available the performance was then abandoned.

Prick, who is 70, is reported to be in a stable condition.