An Iraqi refugee in France thought to be a former senior member of the Islamic State group has been arrested in Paris and indicted on suspicion of "war crimes" over his alleged involvement in a massacre in his country.
The 33-year-old man, referred to as Ahmed H, is accused of having participated in the June 2014 capture and execution of an estimated 1,700 young, mainly Shiite army recruits from the Speicher military camp to the north of Tikrit.