A man has been stabbed in a suburb west of the French capital Paris, media reports say, with the attacker shot dead by police.
Reports suggest the victim in Conflans-Sainte-Honorine was beheaded but police have not confirmed this.
The French anti-terrorist prosecutor has been called in to lead an investigation.
The attack occurred at about 17:00 local time (15:00 GMT),
France's Interior Minister Gerald Darmanin, travelling to Morocco, is returning urgently to Paris.
https://www.bbc.com/news/world-europe-54573356