The latest on a Russian double agent who is fighting for his life leads the papers for a second day - as the inquiry into how Sergei Skripal fell critically ill continues.
The Times leads with reports that the suspected poisoning of Mr Skripal and his daughter Yulla is being treated as an assassination attempt linked to Russia.
The Daily Telegraph leads with a quote from Russian president Vladimir Putin that "traitors will kick the bucket" which he is reported to have said when Mr Skripal was released.
The line that counter-terrorism officers are taking over the inquiry into the suspected poisoning leads the Guardian, which also reports that North Korea is open to discussing a freeze in its nuclear ambitions.
The Financial Times also leads on the Korean "detente", calling it a big shift in the strategy of leader Kim Jong-Un.
The Metro features the investigation into the suspected poisoning, reporting that tests are being carried out in Porton Down, Wiltshire, near to where the father and daughter were found.
The i reports that the Duke of Cambridge and other British dignitaries are unlikely to travel to Russia for this summer's World Cup if state involvement is proven.
The Daily Mirror features the "worldwide hunt" for the assailants, and reports that Michael Le Vell has declared himself bankrupt.
The Sun claims that Mr Skripal's pint may have been spiked by a "Kremlin assassin".
The Daily Mail leads on suggestions make by Foreign Secretary Boris Johnson that the Royals may give the World Cup a miss.
The Daily Express also leads on the suggested boycott of the World Cup.
While the Daily Star carries the same story, calling the poisoning "Russki spy terror".