For the first time ever, the UK Conservative Party denied registration to the Russian Embassy staff to attend the annual party conference scheduled to take place in Birmingham later this month, embassy's press officer said on Thursday.

Axar.az informs citing Sputnik.

"Throughout the years, the Embassy has traditionally been attending the conferences of the Conservatives, the Labour, and sometimes of the Liberal Democrats, regardless of the state of Russia-UK bilateral relations. However, this year the Conservatives have refused to grant accreditation to our diplomat, making it clear that Russian officials are not welcome at the conference," the press officer told reporters.

Relations between the UK and Russia deteriorated following the poisoning of Russian ex-spy Sergei Skripal and his daughter Yulia said that they visited Salisbury.

In the latest development of the case, the Metropolitan Police released the images of the suspected perpetrators — Alexander Petrov and Ruslan Boshirov, claiming that they were Russian military intelligence officers.

The Russian Foreign Ministry dismissed the charges and said that the names and photos of the suspects didn't prove that they had links to Russian military intelligence agencies.