A spokesman for Greater Manchester Police said that just before 2.20am, police were called by the fire service following a blaze at a house on Albert Road West, Heaton, Bolton.
A woman was taken to hospital but died a short time later of burns.
Following a search of the house, a further two bodies were discovered.
The flames have since been extinguished.
A joint investigation has now been launched A spokeswoman for Greater Manchester Fire and Rescue Service said three fire crews were sent to the scene of the blaze at the semi-detached house following a call at 2.03am.
The fire was put out but its cause is not yet known, she added.to establish how the fire started and identify the bodies.
A spokeswoman for Greater Manchester Fire and Rescue Service said three fire crews were sent to the scene of the blaze at the semi-detached house following a call at 2.03am.
The fire was put out but its cause is not yet known, she added.
An inquiry has been launched after three people died in a house fire.
Two bodies were recovered from the address in Heaton, Bolton, while a woman was taken to hospital but died a short time later from burns.
A joint investigation by Greater Manchester Police and Greater Manchester Fire and Rescue Service has been launched to find the cause of the blaze early today.
Greater Manchester Police have arrested three more men in connection with the multiple rape and sexual assault of a teenager from Bolton. In a statement police said:
Officers investigating allegations that a 15-year-old girl from Bolton was the victim of numerous sexual assaults and rapes have made a number of additional arrests.
Three men aged 21, 34 and 45 were arrested on suspicion of rape and a 24-year-old man was arrested on suspicion of child abduction.
Today's arrests mean that a total of nine men have been arrested in connection with the allegations.
Five men who were arrested earlier over the alleged rape of a 15-year-old girl have all been bailed until 15 January 2014.
The arrests came as part of a police operation in Bolton that targeted suspected child sexual exploitation.
The men were arrested during raids at addresses in Bolton on suspicion of subjecting the teenager to repeated sexual assaults between July 2011 and September 2012.
The five suspects arrested over the alleged rape of a 15-year-old girl are understood to be of various ethnicities.
Detective Inspector Simon Davies, of Greater Manchester Police's Serious Sexual Offences Unit, said:
This is the result of a complex and detailed investigation that has been running for several months into allegations of serious sexual assaults committed against a young girl.
There are other people we are actively seeking to speak to as part of this investigation and there may be further arrests in future.
For those reasons, we are unable to go into any more detail about the status of the investigation.
Specially trained staff are continuing to support the victim throughout what is clearly a very traumatic time for her.
Five men have been arrested over the alleged rape of a 15-year-old girl.
They were held in raids at addresses in Bolton on suspicion of subjecting the teenager to repeated sexual assaults between July 2011 and September 2012.
All five remain in custody for questioning on suspicion of rape and conspiracy to commit rape.
An 87 year old man has died weeks after being attacked in his home in Bolton. Frank Worsley was robbed and beaten when he was woken up by an intruder on Longfield Road just after midnight on Saturday 3 August.
Frank was admitted to hospital after suffering a stroke and a bleed to his brain, but died there yesterday afternoon.
A Home Office post-mortem examination is due to take place today, 21 August 2013, to determine the cause of Frank's death.
A schoolboy is fighting for his life in hospital after a major car crash in Bolton that injured a dozen people.
The 12-year-old is in a critical condition, while a 50-year-old man was also hospitalised when a vehicle ploughed into a pavement.
Police said they believe the two cars involved were racing each other when they collided.
Sergeant Danny Byrne from Greater MP’s Serious Collision Investigation Unit, said: “One young boy has been left seriously hurt and we have officers with his family.
“The fact they are waiting to hear whether their beloved 12-year-old boy will survive reflects the absolute appalling consequences of driving in such a reckless manner."
Greater Manchester Police is urging the parents of the baby that was found on Ox Hey Lane, Lostock, on Thursday 14 March, to come forward. It is expected that representatives from the Bolton Council of Mosques will begin planning the funeral today, which is expected to take place on Tuesday.
The baby was born alive and lived independently for up to two hours; however officers are still trying to find out what happened and who the parents are.
We would be really keen to give the baby a name that means something to the parents.
I am grateful to members of the local community who have offered to cover the funeral costs.
I would very much like for the parents to be involved with the preparations for the funeral of their child.
If you think you can come forward...we will try and get you the help and support that you need.
It has been requested that this baby be given an Islamic burial and we will be ensuring this is done.
We want to appeal for help from all communities to come forward and put an end to this investigation.
There is help available to Alia's family and the grieving process could be easier for you if you come forward and use the help that is available.
You may not get another opportunity and we don't want you to end up regretting this for the rest of your life.
Police are appealing to the parents of a newborn girl, whose body was found a week ago.
Last Thursday afternoon, officers were called to Ox Hey Lane in Lostock, Bolton after the baby was discovered.
Wrapped in clothing and plastic bags, a note was attached to the girl's body requesting she had an Islamic burial.
Given the name Alia by police, her cause of death remains uncertain, as does Alia's age and ethnicity.
Officers will be manning a mobile police station on Ox Hey Lane today from 7am to 7pm, Chief Inspector Carol Martin, said, "I would encourage either parent to pick up the phone."