Two people have been arrested in connection with an arson attack at a flat in Lowestowft which left a woman in hospital with severe burns.
Emergency services were called to Normanston Drive in Lowestoft in the early hours of Saturday.
A 51-year-old woman suffered burns and is being treated at the special burns unit of a hospital in Chelmsford.
A 36-year-old man and a 19-year-old woman have been arrested on suspicion of arson with intent to endanger lives.
The teenager is also being questioned over allegations of assault.