The boy had been at football practice when he was stopped by two teenagers on Friday who demanded his phone. When he refused, he was stabbed in the shoulder and later died at the hospital.
The two suspects, a 16- and a 17-year-old, have been arrested.
Interior Minister Bruno Retailleau reacts strongly to the 14-year-old's death at the hands of "barbarians who wanted to steal his phone".
"Rebuilding a France where parents no longer need to fear seeing a child murdered for nothing will be a long and difficult journey", Retailleau writes on X.
Paris police chief Laurent Nuñez says on Monday that the increase in youth violence has become "unbearable". In the Paris region, a third of all those accused of violent robbery are minors, he tells the media company RTL.
