A 26-year-old local woman has been arrested on suspicion of arson after a fire at a flat in Brighton.
Firefighters had to rescue a woman and three dogs from the ground floor flat in Widdicombe Way, Moulsecoomb.
The woman was taken to the Royal Sussex County Hospital suffering from smoke inhalation.
Sussex Police said a severe fire was raging when East Sussex Fire and Rescue crews arrived at the flats at about 2000 GMT on Wednesday.
The suspect was arrested at the scene.