A gunman killed five people including a three-year-old girl during a six-minute rampage in the English city of Plymouth, say police.
Jake Davison, 22, then turned the gun on him himself.
He killed a woman at an address in Biddick Drive on Thursday evening before entering a property in the same street and shooting dead a girl, three, and a "male relative" of the youngster, according to Shaun Sawyer, Chief Constable of Devon and Cornwall Police,
Back in Biddick Drive, he shot at a man and a woman who received "significant but not life-threatening injuries", added Ch Con Sawyer.
Davison went on to shoot dead a man in adjacent parkland before murdering another woman in Henderson Place.
"Eyewitnesses have told us that then Mr Davison turned the gun upon himself, taking his own life," said Ch Con Sawyer.
Police confirmed investigators are not considering terrorism but have not yet found a motive. Davison's social media accounts are being analysed.
“This is a truly shocking and tragic incident which has seen five people and an offender lose their life," said Ch Con Sawyer. “The impact on the local community of Keyham, the city of Plymouth and many communities across the country in which relatives of the deceased live will be felt for many months and years."
UK Prime Minister Boris Johnson said his "thoughts are with the friends and family of those who lost their lives and with all those affected by the tragic incident".
Plymouth Sutton & Devonport MP Luke Pollard said he was "utterly devastated" that one of the victims was so young and announced that a primary school and several churches were being used on Friday "a safe space for the community."
Home Secretary Priti Patel described the incident as "shocking", urging people via Twitter to remain calm.
Sir Keir Starmer, leader of the main opposition Labour party, described it as a "clear tragedy".
"My thoughts are with the families and neighbours of those caught up in this nightmare," he wrote on Twitter. "I pay tribute to our emergency services who ran towards events we'd all run from."