Recent AI (artificial intelligence) safety concerns have been fuelled by stark warnings from AI scientists about the growing risks of the technology going rogue.
Some of the most pessimistic predictions warn that there is a greater than 10% chance that AI could wipe out all humans in the next 10 years.
Many of the apocalyptic messages come from observers of the AI world known as 'AI Doomers' - but the big question many are asking, is how these Doomers think AI could actually bring an end to mankind.
Cyber Correspondent Joe Tidy looks at some of the scenarios being imagined and assesses how likely they are.

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A 20-year-old driver with a provisional license and no insurance crashes during a police chase.

The BBC’s Caitríona Perry spoke to the late president's niece, as protesters gathered at the venue to condemn demolition threats.

The US president on Friday announced he is "immediately" banning CNN, MS NOW and Politico from the White House.

Records in 2024 show the venue had a surplus of millions of dollars once contributions and grants had been factored in.

The couple spoke out for the first time since Lindsay Clancy's murder trial in an interview with BBC's US partner CBS.

Russia's parliamentary elections are under way, the first since the full-scale invasion of Ukraine in 2022.

Princess Diana's iconic "revenge dress" is being put up for auction at Sotheby's.

Mexicans celebrate the return of a centuries-old document that tells the story of the Aztec civilisation and its fall after the arrival of Spanish conquistadors.

Earl Spencer spoke exclusively with the BBC's Laura Kuenssberg about claims he has made in a new book.
Speaking on BBC Radio 4's Today programme, Nicholas Brandram's sisters accused the Metropolitan Police of being "negligent and reckless".
Leven Primary School encourages pupils and parents to dance to classic tunes three times a week.
CCTV footage is released of two men police want to speak to in connection with the incident in Bethnal Green on 1 August 2024.
The footage was filmed by a US Navy officer who reported the group of bright airborne objects to the Air Force's UFO investigation programme.
Three women take on Bangers and Cash Rally as part of 60th birthday celebrations dressed in pink.
James Walsh popped the question at Skegness Aquarium to Paige Cook.
Hundreds of patients suffered injury during treatment at a breast unit at an NHS trust in north-east England.
Anton Oakley had crack cocaine hidden in his sock when police found him, officers say.
The BBC's Robin Levinson-King spoke to Buffalo Bills fans at a home game about why the Canadian anthem is being played.
The winning video features tiny hair-like structures, called cilia, in the airways of a child with a rare genetic disease.
