Three other children among a group aged three to eight were found unconscious in a pond by a hotel where they lived in temporary accomodation.
Expert says 18,000 people die as a result of the side effects of certain medications, many of which are handed out under unjustified prescriptions.
The victim was a French corporal who was tracking down jihadist fighters in their northern Mali mountain bastions, officials said.
Drug designed to combat acne but which was also prescribed as a female contraceptive caused four deaths, says France's drug safety agency.
Five people, including a child, were killed in an overnight fire that swept their apartment in the suburb of Gennevilliers, north of Paris.
Two young girls are the only survivors of a shooting attack on a holidaying family from Britain that left four dead in woodland in the French Alps.
Four French people have died in forest fires raging between France and northern Catalonia in Spain, the worst in the region in more than 20 years.
President François Hollande and his predecessor Nicolas Sarkozy attended a ceremony in Paris to honour four French soldiers killed in Afghanistan.
Four French troops were killed and another five wounded in a suicide bomb attack in eastern Afghanistan on Saturday.
Trial opens of French pharmaceutical firm Servier for hiding dangers of diabetes drug used to lose weight and blamed for causing at least 500 deaths.