NIMES (France), April 28 -- A man suspected of stabbing a young Malian to death in a mosque in southern France and then filming his victim writhing in agony has been arrested after surrendering to police in Italy, the prosecutor said on Monday.

The killing of Aboubakar Cisse on Friday in a village in provincial France caused shock, prompting President Emmanuel Macron to say there was no place for religious hate in French society and Prime Minister Francois Bayrou to denounce an "Islamophobic" crime.

The suspect, a French national born in Lyon in 2004 and named only as Olivier A., "surrendered himself to a police station in Pistoia" near Florence in central Italy on Sunday, Abdelkrim Grini, the prosecutor of the southern city of Ales, to...