British officials said yesterday they would continue to monitor closely the case of 'Big Spender' gang member Wu Man, who was sentenced by mainland authorities to 13 years in jail on Monday. In a statement issued by the British Foreign Office in London last night, a spokesperson said: 'We have seen press reports that Wu Man has been sentenced to 13 years in prison. So far we have been unable to confirm these reports. We are unable to comment. It is not for Her Majesty's Government to comment on the judicial system of a third country.' Wu's sentence was delivered just under a month after he pleaded guilty to his part in the kidnapping of tycoon Walter Kwok Ping-sheung for a $600 million ransom in September 1997. It is understood London will be keeping a close eye on Wu's case, which caused a diplomatic row after he was snatched by mainland police from a Bangkok street in June last year. British officials were denied access to Wu's trial and despite requests, were not given full details of the charges against him. After he was snatched in Bangkok, there were no formal extradition proceedings and the British Embassy in Thailand was not notified as is normal practice. SAR and mainland security officials insist the mainland has jurisdiction over the case even though the bulk of the offences he was charged with took place in Hong Kong. The gangster's lawyers also revealed yesterday that despite the fact Wu did not want to appeal, they would meet him to discuss his relatives' wish to have the sentence handed down by the Guangzhou City Intermediate People's Court reviewed. Wu pleaded guilty on June 23 to taking part in the kidnapping of Mr Kwok with other members of master criminal 'Big Spender' Cheung Tze-keung's gang. While the judge accepted Wu did not pocket his $30 million of the ransom, he said he did not agree that Wu's role had been minor. He said Wu had escorted Mr Kwok into a van after gang members sandwiched the victim's car in Beach Road, Repulse Bay, before taking him to a Fanling hut, binding and blindfolding him. Cheung was executed along with four accomplices on the mainland on December 5, 1998.