Thames Valley Police is appealing for witnesses after a cyclist sustained fatal injuries in a collision on the M40 in Oxfordshire.
The incident took place at around 3.50am on July 13 when a 23-year-old man from Egham in Surrey was hit by a white Mercedes HGV while cycling on the M40 between junctions 8 and 7 southbound.
The cyclist suffered serious head injuries and was taken to the John Radcliffe Hospital in Oxford where he died on Wednesday July 22.
Investigating officer PC Kelly Hobson, from the Serious Collision Investigation Unit, said: “I would like to speak to anyone who saw the collision or the cyclist and lorry before the collision.”
If you have any information, you can contact the Thames Valley Police enquiry centre on 101 or Crimestoppers anonymously on 0800 555 111.