MADONNA'S troubled Scottish show is at the centre of yet more controversy after a second batch of tickets were given away for free.

A link to a competition winner's section of a ticket website was posted online, meaning fans could snap up tickets worth £66 for free.

Free tickets to the 60,000-seat capacity show at Murrayfield Stadium, Edinburgh, were given away as the result of an identical blunder on Tuesday.

The star has been subject to a string of setbacks in recent days, revealing yesterday that plans for an Australian tour had been cancelled.

Wednesday's show in Hyde Park, London, was branded a flop by critics and some fans walked out.

A Twitter user posted a link to free Madonna tickets at lunchtime today.

Clicking on the link took fans to a section of the website that should be available only to competition winners. It was possible to select up to two tickets on each visit – all for free.

But the promoters of Saturday night's show, Live Nation, denied the suggestion that tickets were being deliberately released for free to avoid the embarrassment of empty seats.

A spokeswoman said: "The hidden link customers were able to access was intended for a closed group of competition winners to redeem the limited number of tickets available. The link was then posted via a social networking site by one of those winners and other members of the public were able to access them."