Twelve men and one woman have been injured - two seriously - when a trailer carrying them overturned at an Essex farm during a shooting event.
The East of England Ambulance Service was called just after noon to Lodge Farm in Plough Road, Great Bentley.
Police said 11 men were taken to Colchester Hospital - 10 with minor injuries and one seriously injured.
A woman, who was seriously injured, and a man, who suffered cuts and bruises, were taken to Queens Hospital, Romford.
The trailer was carrying about 17 people who were on an organised shooting event at the farm.
This incident has now been referred to the Health and Safety Executive.
Doctors said the casualties were mostly elderly men who it is believed were working as beaters, people working on a shoot tasked with flushing birds from cover in the direction of the guns.
Essex Police said the 10 men who suffered minor injuries and were taken Colchester Hospital were allowed home after treatment.