Four girls suffered serious burns in the bathroom of a fast food restaurant in Brighton.

East Sussex Fire and Rescue Service said they were called at 8.28pm on Thursday 31 October to reports of a fire at a Wendy’s restaurant.

Four 12-year-old girls suffered “potentially life-changing” injuries.

The children were taken to hospital where they remain in a serious but stable condition, Sussex Police said.

Sussex Police and the fire service said they were still investigating the cause of this incident, but could confirm that fireworks were not involved.

East Sussex Fire and Rescue Service said the cause of the incident was accidental and members of the public are not at risk.

Three fire engines, an aerial apparatus and specialist officers attended.

A spokesman for East Sussex Fire and Rescue Service said: “CCTV footage has been reviewed as part of the investigation and we can confirm that the cause was accidental and fireworks were not involved.”

The force said it would not release any further information at this time as it was “sensitive to the injuries of those involved”.

A Wendy’s spokesperson said: “Our thoughts are with those recovering from this incident at our Brighton restaurant.

“The safety of our customers and employees is our highest priority. We are continuing to work with local police authorities on their investigation.”