Burnt food resulted in two people being treated for smoke inhalation in Alfreton.
Firefighters were called to a property on Cressy Road at around 12.10am today.
Upon arrival, they found the property to be heavily smoke-logged as a result of burnt food.
A Derbyshire fire service spokesman said: "Paramedics attended to treat two casualties for smoke inhalation."
For fire service advice on how to stay safe over Christmas, click here.