Nigeria: Pfizer 'probed Nigerian official'

US drugmaker Pfizer hired investigators to find evidence of corruption against the then Nigerian attorney-general to convince him to drop legal action against the company over a drug trial, the UK's Guardian newspaper has reported, citing leaked US diplomatic cables. Nigeria's Kano state sued the world's largest drugmaker in May 2007 for $2bn in damages over testing of the meningitis drug, Trovan, which state authorities said killed 11 children and left dozens disabled.