Two riders were taken to hospital with serious injuries suffered during a motocross event in east Suffolk. 

The second block of racing at the Dirt Store ACU British Championship at Blaxhall, near Woodbridge, was cancelled by organisers on Sunday following the injuries suffered by riders and a medical emergency in the crowd. 

Organisers Woodbridge DMCC and RHL Activities said sufficient ambulance cover was arranged for the event, but all three were required to leave within a short space of time. 

The statement said: "Despite having above the required medical cover for the event, three ambulances were required to leave site in a short period of time.

"This was following a medical emergency with a spectator and then two riders sustaining serious injuries within 30 minutes of one another.

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"Unfortunately the local hospital was running over capacity. The patients had to continue being treated by the medical crews from our event and therefore were unable to handover care and return to site.

"Following the 90 minute delay and with the medical crews still being held at the hospital, the club and championship promoter RHL Activities had to make the difficult decision to cancel the second block of racing due to rider and spectator safety being of paramount importance."

Both injured riders received treatment and were released from hospital on Sunday evening. 

Organisers have confirmed the spectator is receiving the appropriate care. 

"The club and RHL Activities are both deeply disappointed that the day had to end early, however hope that everyone understands rider and spectator safety has to be of paramount importance," the statement added.