Russian state television has warned “traitors” and Kremlin critics that they should not settle in England because of an increased risk of dying in mysterious circumstances.

“Don’t choose England as a place to live. Whatever the reasons, whether you’re a professional traitor to the motherland or you just hate your country in your spare time, I repeat, no matter, don’t move to England,” the presenter Kirill Kleymenov said during a news programme on Channel One, state TV’s flagship station.

“Something is not right there. Maybe it’s the climate. But in recent years there have been too many strange incidents with a grave outcome. People get hanged, poisoned, they die in helicopter crashes and fall out of windows in industrial quantities,” Kleymenov said.

The stark warning comes as the former Russian double agent Sergei Skripal and his daughter, Yulia, remain critically ill in hospital after being poisoned with a nerve agent in Salisbury. Moscow has labelled speculation that they were targeted by the Kremlin security services as an “anti-Russian campaign”.

Play Video 2:03 Who is the Salisbury spy Sergei Skripal? – video explainer

A number of Kremlin critics have met grisly ends in Britain in recent years. Boris Berezovsky, an oligarch turned government critic, was found hanged at his home in Berkshire in March 2013. The coroner delivered an open verdict. Alexander Litvinenko, a former FSB security service officer, died in 2006 after being poisoned with polonium-210 in the lobby of a Mayfair hotel, allegedly by Russian hitmen. Vladimir Putin dismissed accusations of Russian involvement.



Timeline Poisoned umbrellas and polonium: Russian-linked UK deaths Show Hide Georgi Markov In one of the most chilling episodes of the cold war, the Bulgarian dissident was poisoned with a specially adapted umbrella on Waterloo Bridge. As he waited for a bus, Markov felt a sharp prick in his leg. The opposition activist, who was an irritant to the communist government of Bulgaria, died three days later. A deadly pellet containing ricin was found in his skin. His unknown assassin is thought to have been from the secret services in Bulgaria. Alexander Litvinenko The fatal poisoning of the former FSB officer sparked an international incident. Litvinenko fell ill after drinking tea laced with radioactive polonium. He met his killers in a bar of the Millennium hotel in Mayfair. The pair were Andrei Lugovoi – a former KGB officer turned businessman, who is now a deputy in Russia’s state Duma – and Dmitry Kovtun, a childhood friend of Lugovoi’s from a Soviet military family. Putin denied all involvement and refused to extradite either of the killers. German Gorbuntsov The exiled Russian banker survived an attempt on his life as he got out of a cab in east London. He was shot four times with a silenced pistol. He had been involved in a bitter dispute with two former business partners. Alexander Perepilichnyy The businessman collapsed while running near his home in Surrey. Traces of a chemical that can be found in the poisonous plant gelsemium were later found in his stomach. Before his death, Perepilichnyy was helping a specialist investment firm uncover a $230m Russian money-laundering operation, a pre-inquest hearing was told. Hermitage Capital Management claimed that Perepilichnyy could have been deliberately killed for helping it uncover the scam involving Russian officials. He may have eaten a popular Russian dish containing the herb sorrel on the day of his death, which could have been poisoned. Boris Berezovsky The exiled billionaire was found hanged in an apparent suicide after he had spent more than decade waging a high-profile media battle against his one-time protege Putin. A coroner recorded an open verdict after hearing conflicting expert evidence about the way he died. A pathologist who conducted a postmortem examination on the businessman’s body said he could not rule out murder. Scot Young An associate of Berezovsky whom he helped to launder money, he was found impaled on railings after he fell from a fourth-floor flat in central London. A coroner ruled that there was insufficient evidence of suicide. But Young, who was sent to prison in January 2013 for repeatedly refusing to reveal his finances during a divorce row, told his partner he was going to jump out of the window moments before he was found.

Skripal poisoning Sergei Skripal and his daughter Yulia were were found unconscious on a bench in the Maltings shopping centre in Salisbury after 'suspected exposure to an unknown substance' which was later identified as chemical weapon novichok. In the aftermath Theresa May blamed Vladimir Putin and expelled 23 Russian diplomats who were suspected of spying. Two Russian men using the identities Ruslan Boshirov and Alexander Petrov were named as suspects. They appeared on Russian TV to protest their innocence.

The Skripals survived. However a local woman, Dawn Sturgess, died after spraying novichok on her wrists from a fake Nina Ricci perfume bottle converted into a dispenser, which had been recovered from a skip by her partner Charlie Rowley.

In 2012, Alexander Perepilichnyy, a former banker who was helping Swiss prosecutors investigate a Russian-linked money-laundering scheme, died after collapsing in Surrey. A pre-inquest hearing heard that traces of a chemical that can be found in the poisonous plant gelsemium were later found in his stomach. The inquest is due to resume next month.

Stephen Curtis, a millionaire lawyer with close ties to the exiled Russian tycoon Mikhail Khodorkovsky, died when his helicopter crashed close to Bournemouth airport in 2004. Curtis is reported to have told a close relative that if he were to die, it would not be an accident. One of Curtis’s associates, Scot Young, who had business links to Berezovsky, was found impaled on railings after falling from his apartment in Marylebone, central London, in 2014. The coroner found insufficient evidence to rule it a suicide, and his family suspect he was murdered.