Six people, including a gunman, have died in a shooting in Plymouth, with two others injured.
The atrocity, which happened shortly after 6pm on Thursday, is being treated as a domestic incident not terror related.
Police on Friday named the gunman as Jake Davison, a 23-year-old crane operator.
What happened?
A three-year-old girl was among his victims during the six-minute incident in Keyham, Plymouth.
His first victim was a 51-year-old woman, who was known to him, with police saying they had a familial relationship.
He then left the unnamed address and shot the girl and her 43-year-old male relative in Biddick Drive.
Two further victims were a man, 59, shot in parkland nearby, and a woman, 66, killed at Henderson Place.
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Davison then turned the gun on himself, before police could intervene. None of his victims have been identified by police.
In between, Davison shot at a man, 33, and a woman, 53, who survived. They remain in hospital being treated for injuries which are not thought to be life-threatening.
Parts of the incident happened in front of other members of the public who are said to have been "shocked at what was unfolding before them".
A weapon has been recovered, described by witnesses as a "pump action shotgun".
The killer had a firearms licence, and police do not believe he was linked to any terrorist or far-right organisation.
The crime scene currently stretches to 13 separate sites.
Who are the victims?
Police have not yet issued any names. The deceased were a 51-year-old woman who was known to the offender, a three-year-old girl and a related 43-year-old man, a 59-year-old man and a 66-year-old woman who died later in hospital, the force added.
Police believe Davison turned the gun on himself after carrying out the shootings.
Two other people, a 53-year-old woman and a 33-year-old man who were known to each other, were injured at the scene and continue to be treated in hospital. Neither are seriously injured.
Residents of Keyham, an area near the Plymouth docks, reported seeing bodies in the streets and hearing “loud bangs and gunshots”.
Police and crime commissioner for Devon and Cornwall, Alison Hernandez said many in the community “would have witnessed what occured, right in front of their eyes, where they live”
She added that she was “absolutely devastated this morning”.
Police are examining the hard drive and social media activity of Davison, who posted on a YouTube channel under the name Professor Waffle and previously said he did not have "any willpower to do anything anymore" in a recording dated July 28.
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Prime minister Boris Johnson tweeted: "My thoughts are with the friends and family of those who lost their lives and with all those affected by the tragic incident in Plymouth last night. I thank the emergency services for their response."
Home secretary Priti Patel tweeted: "The incident in Plymouth is shocking and my thoughts are with those affected. I have spoken to the chief constable and offered my full support. I urge everyone to remain calm, follow police advice and allow our emergency services to get on with their jobs."
What happened?
Police responded to reports of a man shooting people in Keyham in Plymouth just after 6pm.
Witnesses described seeing a gunman, dressed in black and grey, kicking down the door of a semi-detached house and opening fire.
It is thought that the gunman fled the house, having injured several people. He then ran along a cul-de-sac and onto a street where he is thought to have shot at strangers passing-by.
The gunman then allegedly moved into a park and shot at two dog walkers.
One eyewitness wrote on social media: “There’s [a man] on the rampage in my cul-de-sac with a real gun and he’s already shot two people.
“They are laying on the ground. One is dead – blood everywhere. I’m shaking like a leaf.”
Another said: “The guy shot members of his family then went out onto the street”.
A witness named Sharon, who lives near Biddick drive where the incident took place, told the BBC: “Firstly, there was shouting, followed by gunshots – three, possibly four to begin with.
“This was when the shooter kicked in the door of a house and randomly started shooting... he ran from the house shooting as he ran and proceeded to shoot at a few people in the Linear Park up from the drive.”
Robert Pinkerton, 54, said he had “bumped into a bloke with a shotgun” after he heard a “loud bang”.
Mr Pinkerton saw an injured woman in the doorway of a hairdressers and a man trying to give her medical help.
A resident of the area, John, said: “I heard the air ambulance helicopters, and two of them landed in the playing field behind us.
“Then we could hear police cars screeching and we saw armed response officers running up the hill, carrying guns. And loads of ambulances arrived.
“I went out to check that people were all right and to ask if there was anything we could do, and the Police Community Support Officers told everyone to get back indoors.
“Then we saw the ambulances take people away. It all seemed to be happening at the man’s family home, I think. People are saying that the man has killed himself. He’s only a young guy, late teens or early 20s.”
Another witness said: “I was at my mate’s house after going to the gym. We were in his kitchen making some sandwiches and suddenly we heard shouting followed by screaming.
“We really thought nothing of it as the area can be noisy sometimes. We soon after heard what we thought was a firework going off so then walked towards the front off the house.
“We then saw the body of the gunman and called 999.”
Who is the gun man?
The gunman has been named locally as apprentice crane operator Jake Davison.
The 22-year-old had a fascination for American gun culture and used his social media account to follow pages dedicated to fire-arms, including a campaigning page to end the ban on the sale of machine guns in America.
He also followed a large number of gun publications on social media, such as Shooting Times magazine, RifleShooter magazine, Handguns magazine and The Truth about guns, among others.
Davison has posted support for President Trump on his social media.
In one post on Facebook, Mr Davison re-posted a photo of the former US President with a quote that read: “In America, we do not seek to impose our way of life on anyone, but rather to let it shine as an example for everyone to watch.”
He also updated his Facebook cover photo to a picture of a bald eagle – the emblem of the United States – standing in front of the American flag.
Jake Davison was reportedly employed at the defence and aerospace security company Babcock International.
It is still not known how he got hold of the gun that he used to attack his family, strangers and ultimately himself in Keyham on Thursday.
However the mass shooting - the worst in Britain for 10 years - will raise questions about how Davison was able to get the weapon in a country with such strict gun controls.
Who are the victims?
Devon and Cornwall Police said two females and three males died at the scene, while one female died shortly after in hospital. A local MP has said that one of the victims was a child under the age of ten.
Local media have reported that two other people were shot and hurt, but that their injuries are not thought to be serious.
It is also understood that police are contacting families using a specialist liaison officer. Police believe that the gunman was known to some of his victims but that he also attacked strangers in the local area.
Emergency services have not confirmed the names or ages of any of the victims so far, but local MP Luke Pollard has said that one of the people killed was a child “under ten years old”
What has the reaction been so far?
Home Secretary Priti Patel said the incident was “shocking”, adding: “My thoughts are with those affected.
“I have spoken to the chief constable and offered my full support. I urge everyone to remain calm, follow police advice and allow our emergency services to get on with their jobs.”
Writing on Twitter, Prime Minister Boris Johnson said: “My thoughts are with the friends and family of those who lost their lives and with all those affected by the tragic incident in Plymouth last night.
“I thank the emergency services for their response.’’
Local MP Johnny Mercer called for calm from local residents. He said the “serious and tragic” incident in Plymouth was not “terror related”.
Mayor of London Sadiq Khan offered his condolences saying: “Deeply saddened by the loss of life in Plymouth this evening. My thoughts and prayers are with all those affected and the emergency service workers responding to this tragic incident.”
Leader of Plymouth City Council Nick Kelly said nothing in his “living memory” compared with the shooting. He said: “Today our city is mourning and my heart goes out to all those who are directly affected by this incident.”
The Bishop of Plymouth the Right Reverend Nick McKinnel said the city had been “left with a legacy of grief and trauma, as well as great anxiety” that would “affect people’s lives forever.”