A "tragic accident" at a clinical drugs trial in Rennes, France, has left six people critically ill in hospital - one of whom is brain dead.
The French health ministry issued a statement on Friday morning saying a "serious accident" had taken place in a laboratory.
"This accident resulted in the hospitalization of six of the volunteers at the University Hospital of Rennes. One of them in intensive care, is brain dead," said the statement.
The company is recalling all the volunteers who participated.
Media reports that the drug is a cannabis-based painkiller have been denied by the health ministry.
The Phase 1 trial was being conducted on a drug, taken orally, that is being developed by a European lab.
The company, described as a licensed private institution, specialises in clinical trials to evaluate the safety, tolerability and pharmacological profiles of drugs in healthy volunteers.
The site will be inspected by government officials.
French Health Minster Marisol Touraine told the families affected she is determined to establish who is responsible for the tragic accident.
More to follow...