One of Northern Ireland’s “most promising” journalists has been shot dead during rioting that police are treating as a terrorist incident.
Dissident republicans are being blamed for killing 29-year-old Lyra McKee after violence broke out during police searches in Londonderry on Thursday.
Police said a group known as the New IRA “are likely to be the ones” responsible for her murder.
Ms McKee’s partner said she had been left without “the love of my life”.
Sara Canning, speaking at a vigil in Derry, said the journalist’s dreams had been “snuffed out by a single barbaric act”.
Prime Minister Theresa May said the killing was “shocking and senseless”.
Ms McKee was a journalist who “died doing her job with great courage”, added Mrs May.
The National Union of Journalists (NUJ) described Ms McKee as “one of the most promising journalists” in Northern Ireland.
The Police Service of Northern Ireland (PSNI) said that a gunman fired shots towards police officers in Derry’s Creggan area at about 23:00 BST on Thursday.
Mobile phone footage taken by a bystander during the rioting appears to show a masked gunman crouching down on the street and opening fire with a handgun.
Ms McKee, who was standing near a police 4×4 vehicle, was wounded.
“She was taken away from the scene in a police Land Rover to Altnagelvin Hospital but unfortunately she has died,” said Assistant Chief Constable Mark Hamilton.
The leaders of Northern Ireland’s six biggest political parties said they were “united in rejecting those responsible for this heinous crime”.
In a joint statement, they said: “Lyra’s murder was also an attack on all the people of this community, an attack on the peace and democratic processes.
“It was a pointless and futile act to destroy the progress made over the last 20 years, which has the overwhelming support of people everywhere.”
Detectives have started a murder inquiry and the PSNI’s Deputy Chief Constable Stephen Martin said “evil people” had been behind the killing.
Ms McKee’s death has caused a “wave of shock and sympathy” and was “met with global condemnation, horror and revulsion”, he added.
“The gunman and those who share his warped ideology should hang their heads in shame today – they represent no-one.”
Taoiseach (Irish Prime Minister) Leo Varadkar said Ms McKee “changed lives” as a journalist and an activist and would continue to do so.
Irish people stood in “solidarity with the people of Derry” after the murder,” he said.
“We stand with you as strong as your walls and for as long as they stand,” he added.
“This was an attack not just on one citizen – it was an attack on all of us, our nation and our freedoms.”
Ms McKee was a journalist of “courage, style and integrity” and a “woman of great commitment and passion”, according to the NUJ’s Séamus Dooley.
“I have no doubt that it was that commitment which led to her presence on the streets of the Creggan last night, observing a riot situation in the city,” he added.
Filmmaker Alison Millar, who was due to have dinner with Ms McKee on Friday night, said her friend had been “stolen from us”.
“Lyra was the most beautiful human being,” she said.
“She was compassionate, she was honest, she was funny… she had so many friends and was loved by so many people.”