British Foreign Secretary Boris Johnson has vowed that Britain will respond "robustly" if evidence of state responsibility emerges after a Russian double agent was left fighting for his life following suspected exposure to an unknown substance.

A man in hospital in the UK after he was believed to have been exposed to an unknown substance is a former Russian spy, it is understood.

Alison Williams and Lena Dunham bow out in the final episode of Girls at 10pm on Monday on Sky Atlantic.

The leaders of Russia, Turkey, and China have cast off quasi democratic checks and balances, but the more autocratic their rule, the more they have to lose, writes Nina L Khrushcheva

When he’s not checking Gmail on his MacBook, Vladimir Putin’s new internet czar can’t stop railing against American technology companies.

An Irish musician who drank from the same cup as poisoned ex-Russian spy Alexander Litvinenko has said he fells lucky to be alive.

Good morning. Here’s everything you need to know before you start your day.

Putin implicated in assassination of Alexander Litvinenko in London

The inquiry into Alexander Litvinenko’s death found there were “powerful motives” for organisations and individuals within the Russian state to take action against him.

Russia has sharply criticised the conclusions of a UK inquiry into the 2006 poisoning death of former Russian spy Alexander Litvinenko.

One of two Russians accused of murdering ex-KGB spy Alexander Litvinenko with a radioactive poison in London in 2006 was given a final chance to give evidence to a British public inquiry into the death.

A prime suspect in the killing of Alexander Litvinenko will be allowed to give evidence to the inquiry into the former Russian spy’s death.

One of the men accused of murdering poisoned Russian spy Alexander Litvinenko has said he believes the former KGB officer might have killed himself accidentally after handling radioactive material.

One of the men accused of murdering poisoned spy Alexander Litvinenko will be told he can give evidence at the inquiry into his death in July, the Royal Courts of Justice has heard.

Ukraine’s citizens are fighting bravely against a ruthless aggressor and have been betrayed by the West who has abandoned them to their fate, write Petr Kolar and Juraj Mesík.

Like Stalin, Putin has nurtured a climate of fear and lawlessness, in which those who rally behind the Kremlin feel a duty to eliminate the leader’s opponents however they can, says Nina L Khrushcheva

Murdered spy Alexander Litvinenko’s widow says Boris Nemtsov’s shooting was the Russian government’s way of saying anyone who spoke out against Vladimir Putin would be killed.

Radioactive contamination was detected on a grounded plane used by the suspected murderers of poisoned spy Alexander Litvinenko after reassurances from Russian authorities that nothing was found, an inquiry has revealed.

One of the men suspected of murdering poisoned spy Alexander Litvinenko wanted to be a “porno star” and had no links to the gas and oil industry as he claimed, an inquiry has heard.

A retired army major-general tested positive for a radioactive substance after two men suspected of poisoning former KGB officer Alexander Litvinenko had visited his offices, an inquiry heard.

The widow of poisoned spy Alexander Litvinenko has told an inquiry into his death that he would not have acquired the nuclear materials that killed him.

The widow of poisoned spy Alexander Litvinenko has told the inquiry into his death that he believed Vladimir Putin was involved in “criminal conduct”.

The widow of poisoned spy Alexander Litvinenko has told the inquiry into his death that she has not spoken to his father since he branded him a “traitor”.

The widow of poisoned spy Alexander Litvinenko is to give evidence at the public inquiry in England into his death.

Russian military planes were discovered flying past the west coast of Ireland recently before being intercepted by British Fighter jets, it has emerged.

The postmortem examination of poisoned spy Alexander Litvinenko was “one of the most dangerous ever undertaken in the western world”, the public inquiry into his death has heard.

A long-awaited inquiry into the death of Russian former spy Alexander Litvinenko opened with the revelation that the KGB agent turned Kremlin critic may have been poisoned with radioactive polonium not once — as authorities initially thought — but twice.

An inquiry into the death of the Russian fugitive has finally opened. But those who say that justice delayed is justice denied have doubts that the truth will ever emerge, writes Mary Dejevsky

The death of Russian spy Alexander Litvinenko gives rise to issues of “utmost gravity” including allegations of state-sponsored assassination, the chair of a public inquiry has said.

A long-awaited public inquiry into the death of poisoned spy Alexander Litvinenko is finally set to open today, more than eight years after his death.

A Russian production company has hired a man charged with the murder of Alexander Litvinenko as a consultant on a TV series about the mysterious death.

The widow of murdered spy Alexander Litvinenko said she does not believe a public inquiry into his death has been sparked by international tension with Russia.

A public inquiry will be held into the death of poisoned Russian ex-spy Alexander Litvinenko, the British Home Secretary has confirmed.

The British Government is expected to announce today that a public inquiry will be held into the death of poisoned ex Russian spy Alexander Litvinenko.

The Palestinians said yesterday that Israel is the only suspect in the “assassination” of Yasser Arafat, a day after Swiss experts said tests suggested their veteran leader was killed by polonium poisoning.

Palestinian leader Yasser Arafat was poisoned to death in 2004 with radioactive polonium, his widow Suha said yesterday after receiving the results of Swiss forensic tests on her husband’s corpse.

Specialist police with nuclear and chemical training gave the all-clear at the British home of former Russian business magnate Boris Berezovsky yesterday, a day after the fervent critic of Russian president Vladimir Putin died in unclear circumstances.

Radiation experts investigating the death of the Russian oligarch Boris Berezovsky have given his mansion the all clear.

Sensitive evidence alleged to expose poisoned spy Alexander Litvinenko’s ties to MI6 will be examined in secret, a coroner in the UK has ruled today.

The Russian government was most likely involved in the murder by poisoning of Kremlin critic and former spy Alexander Litvinenko in London in 2006, a British lawyer told a preliminary hearing into the death.