French police have arrested a 27-year-old man following the death of his female Jewish neighbour, whose body was discovered outside their apartment.
The woman, who has been named as 66 year-old Sarah Halimi, was found dead on Monday night.
Police are believed to be probing whether she was deliberately pushed from her window on Vaucouleurs Street in the 11th district of the French capital.
The National Bureau for Vigilance Against Anti-Semitism watchdog believes it may have been premeditated murder, possibly aggravated by racial hatred.