The bodies of five newborn babies were found on Thursday in a house near Bordeaux, southwestern France.
French experts confirmed on Monday that Palestinian leader Yasser Arafat was not poisoned. His death in 2004 sparked conspiracy rumours that he had been poisoned by polonium.
France on Monday sent aid missions to Vanuatu after the cyclone Pam hit the Pacific island during the weekend. More than 100,000 people are reported to have lost their home.
In Rennes - Brittany- the trial begins on Monday for two police officers - a decade after the death of two teenage men that prompted riots in disaffected communities across France.
France registered a record high mortality rate in February. Influenza is thought to be the main cause with more than 10,000 increase in winter death.