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Local police urged people to avoid the area, near Parc des Hauts, while they “intervene”. One witness said on Twitter: “A man attacked three people with a knife, I won’t come out of my house.” Local news says the police operation is still underway.

Other repots claim the man has been shot dead. It has been reported he was wearing a suicide vest. The conditions of those stabbed are yet to be known.

One witness said the police in Paris shot the man dead in Val-de-Marne park, but the location of the attack was also near a supermarket.

The shocking incident was said to have started an hour ago at 12.50pm (GMT).

Residents condemned the attack - just three days into the start of 2020.