Officials in Singapore say that the former Barings Bank trader, Nick Leeson, has sold the story of his life in a Singaporean jail to a British tabloid newspaper for an undisclosed sum.

The news comes ahead of the premiere in London tonight of the film, Rogue Trader, which details his exploits which led to the collapse of Barings Bank in 1995 with losses of one-point-four-billion dollars.

Mr Leeson's new deal is said to reveal all about his stay in Singapore's notorious Changi prison.

Mr Leeson is due to be released from prison next month after serving three-and-a-half years of a six-and-a-half year sentence.

While in jail, Mr Leeson was diagnosed as suffering from cancer of the colon.