Three men and a woman are accused of tying up the Cameroonian teenager in the position of Christ on the cross and keeping her bound to a mattress for seven days in the belief that her body had been possessed by the devil.

The four, including the victim's former boyfriend, were charged with kidnapping, acts of torture and barbarism.

When police discovered the woman at a housing estate in Grigny in the southern Paris suburbs, she was emaciated, dehydrated, in a state of shock and showed signs of having been beaten.

The victim later testified that her captors had kept her alive by feeding her small amounts of oil and water.

Her former boyfriend, Eric Deron, is accused of being the instigator of the assault and, according to prosecutors, had delusions of being a sort of prophet on a divine mission.

According to statements made by the accused, the exorcism was organised after the victim allegedly leaped on Deron whilst babbling incomprehensibly, an attack he took as evidence she had been possessed by the devil.