Istanbul authorities have cancelled a concert by British singer Robbie Williams, scheduled for 7 October. Several Turkish organisations had called on authorities to cancel the concert, as Williams had previously spoken out in support of Israel. The former Take That star took to Instagram to share that he had no option but to cancel his set. "I'm extremely sorry that I will not be able to perform in Istanbul next week," he wrote. "City authorities have cancelled the show, in the interests of public safety. "The last thing I would ever want to do is to jeopardise the safety of my fans - their safety and security come first. "To end this epic run of dates in front of my Turkish fans was my dream, given the close connections my family have with this wonderful country." Williams' wife, Ayda Field, has Turkish heritage. "We were so looking forward to this show, but the decision to cancel it was beyond our control," Williams concluded. The concert, due to take place at an open-air venue in the Ataköy district of western Istanbul, would have been his first in the city. Williams previously performed in Bodrum. In an interview with Turkish media, he noted that he should have visited Istanbul a long time ago.