A man arrested on suspicion of murder after a fire at a historic former stationmaster’s house has been released and will face no further action, police have said.

The fire at a property in Beswick Close in Rushton, near Kettering, killed three people, including a four-year-old girl, on Friday evening.

The other victims were believed to be a 30-year-old woman and a 23-year-old man, Northamptonshire police said.

Their next of kin have been informed and are being supported by specially trained officers.

The suspect, 54, from Kettering, was released without charge after his arrest on Saturday, police said on Sunday.

The senior investigating officer, DCI Ruby Burrow of the East Midlands special operations unit, said on Sunday evening: “It is only right that an incident such as this is treated with the utmost seriousness, to make sure we have done all we can to understand what has happened for the sake of those who have died and their loved ones.

“In some cases, this requires arrests to be made in order to best secure potential evidence.

“Our team has been working at pace on this investigation and after rigorous examination of the available information we do not believe there is any evidence of criminal wrongdoing at this point.

“As a result, the arrested man has been released without charge and will now be supported by specialist officers as he continues to assist the investigation team.

“The families involved have been kept updated on this development and I would repeat our request for their privacy to be respected at this incredibly distressing time.”

Emergency services were called at about 10.30pm on Friday to reports of a large blaze at the property.

In a statement earlier on Sunday afternoon, Ch Insp Paul Cash said only one arrest had been made during the investigation, which was in its early stages: “We know this incident has caused significant distress locally and our officers will remain in the area to provide reassurance and help where we can.

“This investigation is well under way but … it will take time to fully establish what has happened.”

Images from the site show a large hole burned through the roof of the building, which is a 19th-century former stationmaster’s house at the now closed Glendon and Rushton railway station.

It is a Grade II-listed building, according to the Historic England website.