An investigation will take place following a major fire at a primary school in Cwmbran.
South Wales Fire & Rescue Service received a call at 2.27am this morning to reports of a blaze at Coed Eva Primary School.
A spokesperson said firefighters had been faced with a "rapidly developing fire" upon arrival and were forced to call for additional resources.
Dan Caldwell filmed this video of the school alight in the early hours of this morning:
The fire broke out in a single-storey detached school building measuring 50m by 50m, but firefighters managed to contain it so it did not spread to the main school building.
At the height of the incident, 55 firefighters were helping to tackle the blaze.
Pumping appliances were sent from Cwmbran, New Inn, Maindee, Duffryn, Malpas, Risca, Abercarn, Cardiff Central, Barry and Caerphilly, along with three water bowsers and an aerial appliance.
Local residents were told to keep their windows and doors shut during the incident.
Cwmbran blogger Ben Black said pupils, teachers and parents were in tears by the school gates as they surveyed the damage.
He tweeted: "One teacher told me she had to call her colleague and tell her to sit down before saying: 'Your classroom has burned down'."
South Wales Fire & Rescue Service praised members of the public who alerted them to the incident.
A fire investigation officer will now work alongside Gwent Police to determine the cause of the fire.