A Tour of Britain spectator has re-lived the dramatic moment a cyclist crashed into his son on live TV, forcing him to seek treatment at casualty.

The collision, which saw about 10 riders come off their bikes, happened at a corner where the road between Dereham and Mattishall narrows at a bridge over a stream.

Angus Russell, 11, was sitting on the bridge and suffered a 'nasty friction burn' from one of the bike tyres which required dressing at Queen Elizabeth Hospital in King's Lynn.

However, his father Iain, from Barton Bendish near Downham Market, said Angus was more upset about his phone breaking when it fell into the water as he was hit.

Mr Russell said: 'The breakaway had been caught by this time and the peloton arrived at the bridge en-masse. One rider went on the verge as he had nowhere to go as the road narrowed.

'He then came back off the verge, hit the rider on his inside and there was a domino effect across the peloton. The leaders had already gone through and avoided the crash.

'A lot of the other riders had to stop because of the chaos but they were still on their bikes and were able to ride off fairly quickly.

'There was then a period of frenzied activity with bikes and wheels being handed out to some of the riders and all the riders eventually rode off leaving poor number 86.'

The injured cyclist, Belgian Willem Wauters of the Vacansoleil DCM team, did not finish the stage.

Mr Russell added: 'In hindsight I would think twice about sitting on a narrow bridge if we see the race again.'