Thames Valley Police are today appealing for information after the crash in Snelson on the outskirts of Milton Keynes yesterday (Wednesday).
At around 11am a group of cyclists were travelling north along Harrold Road in Snelson, near Lavendon, in the direction of Harrold.
A blue New Holland tractor which was towing agricultural equipment was travelling in the opposite direction on the same road. The cyclists and the tractor collided.
One of the cyclists, a 29-year-old man, sustained a laceration to his back and was taken to Bedford Hospital for treatment.
Another cyclist, a 42-year-old man, sustained fractures to his back and ribs and was airlifted to Addenbrookes Hospital.
Both are currently still in hospital but the driver of the tractor was not injured.
Police would like to speak to anyone with any information about the collision.
If you can help call the 24-hour Thames Valley Police enquiry centre on 101 quoting URN 443 22/7.
If you do not want to speak directly to the police you can contact the independent charity Crimestoppers (opens new window) anonymously on 0800 555 111. No personal details are taken, information is not traced or recorded and you will not go to court.