"Under the Conservatives Britain has a simple message for the Kremlin: If you try to intimidate this country, if you use chemical weapons, if you don’t play by the international rules, the price will always be too high," he told the governing Conservative Party’s annual conference, Censor.NET reports citing Reuters.
Hunt also said Britain was "going to close the net on the GRU".
As reported, Russian ex-spy Sergei Skripal, 67, and daughter Yulia Skripal, 34, were hospitalized in critical condition after they were found unconscious on a bench in the Wiltshire city on March 4 but both have recovered after weeks in the hospital. The UK government says they were poisoned with a nerve agent of a type developed by Russia called Novichok and PM Theresa May said she believed Moscow was "culpable."
A couple who authorities said found the perfume bottle after it was discarded by the attackers fared worse: Charlie Rowley recovered after treatment in the hospital but his partner, Dawn Sturgess, 44, died on July 8.
In an interview to the state-funded RT, Alexander Petrov and Ruslan Boshirov, the two Russians charged with perpetrating nerve agent attack in British Salisbury have claimed they were visiting the town's "famous" cathedral as tourists.
Petrov and Boshirov have been charged with attempting to murder of former Russian spy Sergei Skripal and his daughter Yulia in Salisbury in March by spraying Novichok nerve agent on the handle of their door. Scotland Yard have said these names are probably aliases.
A UK government spokesman rubbished the men's claims as "obfuscation and lies", while John Glen, the Conservative MP for Salisbury and South Wiltshire, called the statements "not credible".
Russian President Vladimir Putin said Russia knew the real identity of two men accused by British prosecutors of trying to murder Skripals and that they were civilians with nothing criminal about them.
Russia adamantly denies involvement in the poisoning, which had added to severe strains in ties between Russia and the West.
Putin's declaration came seven days after British authorities announced that they had charged two Russian men, identified as Aleksandr Petrov and Ruslan Boshirov, with carrying out the poisioning on March 4.
They accused the pair of smuggling the Soviet-designed nerve agent Novichok into Britain in a fake perfume flask and smearing some of the substance on the front door of Sergei Skripal's home in the English city of Salisbury, where the former GRU officer settled after being sent to the West in a Cold War-style spy swap in 2010.