China probes GlaxoSmithKline staff over bribery allegations Authorities in China have launched a probe into the operations of drug maker GlaxoSmithKline. Some senior executives of the firm are being investigated for bribery and tax-related violations, said the Chinese Ministry of Public Security. GSK said in response to the allegations that it had found no evidence of bribery or corruption in China. The BBC's John Sudworth has been looking into the story.