Prosecutors in France have launched an investigation into a drug trial that has left one man brain-dead and five others critically ill.
A total of 90 healthy volunteers were given the painkiller.
Research on the drug has been suspended.
Al Jazeera’s Nadim Baba reports.
– Subscribe to our channel: http://bit.ly/AJSubscribe
– Follow us on Twitter: https://twitter.com/AJEnglish
– Find us on Facebook: https://www.facebook.com/aljazeera
– Check out our website: http://www.aljazeera.com/