IMF's Christine Lagarde 'under investigation'
French authorities have formally opened a negligence investigation into Christine Lagarde, the head of the International Monetary Fund (IMF).
She has been questioned about her role in awarding 400m euro (£318m; $527m) in compensation to businessman Bernard Tapie in 2008. She denies wrongdoing.
Ms Lagarde, 58, was finance minister in President Nicolas Sarkozy's government at the time of the award.
Lucy Williamson reports.
27 Aug 2014