However, AFP reported that Bubka's deputy, Viktor Korzh, was dubious about the veracity of the BBC's claims.

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"We shook hands and had a deal, " said IOC member Bubka in Monaco.

BBC: Sergei Bubka wants 2012 stadium promise honoured

Bubka also plans to talk to Sebastian Coe, head of the London 2012 organising committee, who is also in Monaco.

BBC: Sergei Bubka wants 2012 stadium promise honoured

The official world record is the outdoor 6.14m by Bubka in 1994.

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Gibilisco is coached by Ukrainian guru of the event Vitaly Petrov, the early coach and mentor to six-times world champion and 1988 Olympic champion Sergey Bubka.

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Bubka insisted he had received more guarantees the track would be kept during a three-day inspection visit in September before London withdrew its bid to host the 2015 athletics World Championships.

BBC: Sergei Bubka wants 2012 stadium promise honoured

There is further potential for confusion because the IAAF ruling applies only from 2000, meaning that the highest ever pole vault of 6.15m by Sergey Bubka indoors in 1993 counts just as a world indoor record.

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The Nike "jinx" stretches right back to the Barcelona Olympics in 1992, when the hot favourite pole-vaulter Sergei Bubka failed to win a medal after a Nike poster had bragged about his prospects: "Spanish air traffic control has been notified".

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"I was the chairman of the evaluation commission for London and Beijing 2015 and they told us the track would remain, I saw it written in documents, " said Bubka, who is an International Association of the Athletics Federation (IAAF) senior vice president.

BBC: Sergei Bubka wants 2012 stadium promise honoured