London: Australian singer Kylie Minogue was forced on to cut short a performance on her comeback following treatment for breast cancer because she was suffering from flu, her publicist said.

The London-based diva managed to perform only half of a scheduled two and-a-half-hour concert on Saturday evening in Manchester, northern England, spokesman John Bills said.

"Several members of the crew, the tour manager and Kylie have been suffering from flu - but she didn't want to let anyone down. She wanted to try to get through the show, but had to cut it short," Bills said by telephone from Manchester.

He said there was no connection to Minogue's recovery from treatment for breast cancer, which led to a year-and-a-half career hiatus before a comeback tour that began in Sydney, Australia, last November.

Minogue, 38, was diagnosed with breast cancer in May 2005. She underwent successful surgery in her hometown of Melbourne, Australia, that month, followed by five months of chemotherapy in Paris.

Bills said the tour manager would make a decision Sunday on whether to proceed with Monday's show, the second of five scheduled in Manchester, 316 kilometres north of London.

Minogue had launched the British leg of her tour with a New Year's Eve show in London characterised by a series of costume changes and lavish, sequinned and feathered outfits.

Her hits include "I Should Be So Lucky" and "Can't Get You Out Of My Head".