Christian Nayet turned on the flashing lights and rushed Jean-Francois Pin to a hospital in Lens after the paramedic suffered the attack on 11 April.



The 60-year, who usually lives in Britain, was staying with his parents in the town of Berck-sur-mer to undergo treatment for late-stage cancer.



Speaking to regional paper Voix du Nord, Mr Nayet said: "I told him: 'Give me the keys, trust me! My life is not in danger, but yours is!'



"I couldn't find the siren, but I managed to turn the lights on and told him to put his arm out the window to signal to the cars to let us pass."