A woman was rushed to hospital following a serious two-vehicle collision in Portadown on Tuesday evening.
The incident happened on the Northway shortly before 5pm.
One eye-witness who helped at the scene, alongside a number of nurses, described it as a head-on collision.
The Northern Ireland Ambulance Service confirmed that one person was rushed to the Royal Victoria Hospital in Belfast.
It is understood the woman is in a serious condition.
“The Northern Ireland Ambulance Service received a 999 call at 4.49pm following reports of a road traffic collision in Portadown,” said a NIAS spokesperson.
“NIAS despatched an emergency crew, an advanced paramedic and a HART crew to the incident.
“The HEMS team was also tasked to attend by response car.
“Following assessment and initial treatment at the scene, one patient was taken to Royal Victoria Hospital in Belfast.”
The road remained closed as of 8.25pm.