Firefighters were called to a fire in a bungalow in Newhaven at 23:23 yesterday evening (Tuesday 29th October).
The fire, in Lee Way, Newhaven, is ongoing but under control, six fire engines and a control unit are still in attendance.
Three adult males were rescued from the building and have been taken to hospital.
A firefighter is receiving medical attention for a minor injury.
Three dogs were also rescued.