A “small number” of people injured after a double-decker bus overturned in “treacherous” freezing conditions have been left needing surgery, NHS Somerset has said.
Avon and Somerset Police had declared a major incident after the crash on the A39 Quantock Road, in Bridgwater.
The collision involved a motorcyclist and the bus carrying 70 workers to Hinkley Point C power station.
The NHS in Somerset said 27 patients were taken to a minor injuries unit while another 26 were taken to the emergency department at Musgrove Hospital for injuries consistent with a “serious traffic collision”.
A spokesperson for the service said: “A small number require surgery and some have been admitted to inpatient wards.
"A further three patients were taken to Southmead Hospital, Bristol, where they received treatment, but none have needed to be admitted to hospital.
“We would like to thank all our colleagues, (including those who came in on their day off) as well as the emergency services who have been involved and supporting today and we wish all patients involved a speedy recovery.”
A “significant number” of police, fire and ambulance units were sent to the scene and some trapped passengers had to be freed from the overturned bus.
A Devon and Somerset Fire and Rescue Service spokesperson said: “Crews used hydraulic cutting equipment and small tools to extricate three casualties from the bus.”
Inspector Rebecca Wells-Cole, of Avon and Somerset Police, confirmed there had been no fatalities and said the major incident had been stood down.
She said: “Fifty-four patients were triaged at the scene and it is too soon to confirm whether any of these patients have life-threatening injuries, however, 26 patients are being treated as walking wounded.
“A number of those treated at the scene had been taken to Musgrove Park Hospital, Bridgewater Minor Injury Unit and Southmead Hospital.”
Emergency services were called to the crash at around 6am on Tuesday (17 January).
Earlier, the force had urged people to “only travel if it is absolutely essential” as it had received more than 100 reports of road-related incidents in five hours due to the “treacherous conditions”.
Ms Wells-Cole said: “It may take us some time to recover the bus and to clear the debris from the road.
“I would like to take this opportunity to advise the local residents to only travel where absolutely essential due to the icy road conditions caused by the cold temperatures overnight and the excess water on the road.”
A total of 53 crashes were reported to police between 6pm and 11pm on Monday, most of them due to the freezing weather causing dangerous driving conditions.
Seven of these incidents were reported to have resulted in injuries, but were not thought to be serious, police said.
A further 67 calls concerned other road-related incidents.
Andrew Cockroft, Hinkley Point C’s senior stake holder manager, said the incident happened in “very difficult, dangerous conditions” but that all its bus drivers would have been “taking precautions”.
He added: “The focus for us and over the days ahead, will be the support for the welfare of the individuals who are sadly involved in this incident.
“All of our drivers are highly trained individuals. They would have absolutely have been taking precautions and driving very very carefully as they always do.”
Mr Cockroft described it as “too early to say” what caused the crash but he expects that power station officials would be “working very closely” with the police as their investigations continue.
South Western Ambulance Service NHS Foundation Trust (SWASFT) sent 23 double-crewed land ambulances, two critical care teams, and two hazardous area response teams to the scene.
A Somerset County Council spokesperson said: “All main routes were gritted yesterday afternoon before temperatures dropped and there was a further gritting operation across the county the following morning.
“The recent wet weather and standing flood water on roads poses an additional hazard to drivers and significant challenges to our teams.
“It’s important to remember the majority of roads aren’t gritted and never have been.
"Ice can still form on gritted roads which is why we echo the advice of our Avon and Somerset Police colleagues to only travel when it is necessary and to proceed with extreme caution if you are using our roads.”