Newspaper headlines: 'Brilliant' London Bridge attack victim 'killed for caring'
The repercussions of Friday's terror attack on London Bridge continue to dominate Monday's front pages.
Spy chiefs are on the alert for "copycat" attacks, according to the Times. It is one of several papers to report the arrest of a man described as an "associate" of the London Bridge killer.
It says that after Usman Khan's success in deceiving the authorities into thinking he was deradicalised, police and intelligence services are scrutinising other members of his extremist network in case they try to emulate him.
The Daily Telegraph says the new arrest could be the first of "a number" of convicted terrorists to be returned to prison after a review was ordered into 74 people granted early release.
Both the Daily Mail and the Daily Express describe the move as "a blitz on freed jihadis". The Mail believes the arrest means new offences may have been discovered "within hours" of the review getting under way.
The Guardian says Prime Minister Boris Johnson has been accused of "twisting the facts" in the London Bridge attack in an attempt to turn it into an election issue after he blamed Labour for the release of the terrorist.
The paper says his comments came despite the family of one of the victims, Jack Merritt, saying they did not want the murder of their son exploited.
HuffPost UK agrees that the prime minister is facing claims of ignoring the wishes of the victim's family for political gain.
Most of the papers carry the same photo of Saskia Jones - the second victim to be named - smiling and holding a drink.
The Daily Mirror calls her "brilliant and kind" but believes she and Jack Merritt were failed by a "cash-strapped broken justice system".
The headline in the i also refers to both victims, reading: "they always saw the best in people".
According to the Metro's headline, they were "killed for caring".
The prime minister's interview with Andrew Marr features heavily among the sketch writers and editorials.
In the Guardian, John Crace describes Mr Johnson as a man who can only "talk in staccato bursts of white noise - an incoherent stream of unconsciousness designed to run down the clock in any public appearance".
Henry Deedes in the Daily Mail says "each time Marr tried to get a question in - almost begging on occasion - Boris shouted him down". He compares it to "Softy Walter versus Dennis the Menace".
The encounter was "scrappy, shouty and ill-tempered on both sides" according to Jane Merrick in the i.
The Sun calls the programme "farcical" and blames the interviewer for not allowing the prime minister to get "a word in edgeways". It captions its opinion piece "Marr's attacks".
Finally, the Times reports that readers are swapping their Kindles for headphones - with research suggesting sales of audiobooks are set to overtake ebooks.
The paper says spoken storytelling is enjoying a resurgence thanks to the increased sophistication of headphones and celebrity narrators, which allow readers to enjoy the content in unprecedented sound quality.
It adds that audiobooks are expected to generate £115m in the UK next year - up 30% on 2018. The most popular one this year was the Dickens' classic, David Copperfield read by actor Richard Armitage.