Four people were treated for injuries sustained when a car crashed into horses close to the Co Antrim village of Doagh yesterday evening.
Two of the car's occupants were taken to Antrim Area Hospital for treatment.
It is also understood that three horses died at the scene as a result of the crash.
The accident took place on the B59 road, which links Doagh to Ballymena.
The NI Ambulance Service received an emergency call about the incident at 5.11pm.
Operators immediately sent paramedics to the rural accident location.
Last night, a spokeswoman for the Northern Health and Social Care Trust confirmed that one injured man remained as an inpatient in hospital.
The spokeswoman described his condition as "stable".
The PSNI closed the road in both directions in the aftermath of the crash in order to investigate the scene.
Local road diversions were yesterday in place.