A 45-year-old man has been released without charge after being arrested on suspicion of criminal damage and arson in Nelson on Sunday.
Police and the fire service are continuing to investigate a blaze at a mid-terraced house in Napier Street in Nelson in the the early hours of Sunday morning.
During the incident, which happened at 2-30am and is being treated as arson, a woman climbed through the back window of her house to escape the fire.
Nigel Greenwood, watch manager at Nelson Fire Station, said: “The occupier was upstairs when it happened and climbed through a back window to go to her neighbour’s house to call the fire service.”
He added: “She wasn’t injured and the incident is still under investigation.”
Firemen in two fire engines from Nelson Fire Station spent two and a half hours dealing with the fire which was in the porch and ground floor of the house.
They entered the property wearing breathing apparatus and extinguished the fire using a hose reel and ventilation fan. The front room of the house were severely damaged by heat and smoke and the first floor was also affected by smoke.