A driver said yesterday that he saw two biker 'hitmen' cause the Mercedes to crash into a pillar on the night of Princess Diana's tragic death, and then check if the victims were dead.

Witness, Francois Levistre, 68, claimed a blinding flash of light was directed at Diana's car from the motorcycle after it overtook them in the Pont d'Alma tunnel, Paris. Seconds after the light, the car had swerved into a pillar.

Levistre then saw the one of the motorcycle passengers, dressed all in black climb off the vehicle and examine the victims of the crash. Following that, the man had signalled to his partner that Princess Diana,36 and Dodi Fayed,42 were unconscious.

'They got back on the bike and drove past me looking at me clearly. They were driving very fast'