(Reuters) - Hong Kong media tycoon Jimmy Lai said he personally had “nothing to do with” a report on alleged China business links of the son of U.S. presidential candidate Joe Biden, but admitted funds from his private firm had been used to fund it. Lai, a prominent democracy advocate in Hong Kong and a staunch China critic, said on Twitter that he was “sorry” that his flagship newspaper, Apple Daily, had been implicated in an article by U.S. media outlet NBC. In the article, NBC alleged that a 64-page document circulating on the internet about the purported connections of Hunter Biden to the Chinese Communist Party and his business dealings in China had “questionable authorship and anonymous sourcing”. The article cited the co-author of the “intelligence document”, Christopher Balding, as saying the document had been “commissioned by Apple Daily”, which the paper said in a statement were “false allegations”.