Police are searching for a man in Crouch Hill after a crash which left a 17-year-old boy fighting for his life. 

On Monday morning (November 4) the teen boy was riding his bicycle in Summertown, Oxford, when he was involved in a collision with a motorbike. 

The rider of the motorbike left the scene while the teen boy suffered life-threatening injuries. 

On Friday (November 8) Thames Valley Police appealed for the public’s held in tracing 29-year-old Nazim Kacem. 

It is believed that Kacem has vital information related to the incident. 

He is from Oxford but is known to frequent Crouch Hill, north London, as well as Bristol. 

Nazim KacemNazim Kacem (Image: TVP) Senior Investigating Officer Detective Inspector Justin Thomas of the Serious Collision Investigation Unit said: “I am appealing to anybody who knows the whereabouts of Nazim Kacem to please contact Thames Valley Police. 

“We would like to speak to him as a matter of urgency in relation to this collision. 

“I would also like to appeal directly to Nazim to please contact us if you see this appeal. 

“You can get in touch by making a report online or by calling us on 101, quoting reference 43240532710. 

“Alternatively, if anybody knows of Nazim’s whereabouts, you can also call the independent charity Crimestoppers anonymously on 0800 555 111. 

 “This collision has occurred on a busy stretch of the Banbury Road in the morning rush-hour and resulted in the road being closed for much of the day on Monday. 

“I am reappealing to anybody who witnessed the incident or who may have dash-cam or CCTV footage that has captured the collision, or the moments leading up to it, to please get in touch with Thames Valley Police.” 

Four people were arrested in connection with the investigation. 

A 14-year-old boy has been released without charge, while three others, a 50-year-old man, 41-year-old man and 37-year-old woman, all from Oxford, have been released under investigation.