Last Saturday the body of a Cameroonian woman named Nyangono Thecla, 51, was found in advanced state of decomposition in a van parked near the Saint Jean train station in Bordeaux.
According new reports, she was offering sexual services illegally in her mobile van close to the railway station.
French Police think the backup heater she was using, located in the cockpit, could have produced too much carbon monoxide which she inhaled and suffocated.
Thecla had been missing for close to 15 days.
Her relatives became worried about her absence and alerted the police which led to the discovery of her decomposing
body.
Prosecutors in Bordeaux had ordered an autopsy to determine the exact cause and date of death.