The European Union is blocking Russia-made vaccines against Covid-19, the head of Russia's external intelligence service, Sergei Naryshkin, said on Tuesday.

He said the EU was preventing the approval of the Russian vaccine Sputnik V in Europe for political reasons.

According to his statement unfriendly competition and corruption is sitting behind this, which results in suffering and death of people.

The European Medicines Agency (EMA) has been reviewing Sputnik V for weeks and is expected to reach a decision on its approval in the summer.

"The resistance of EU officials is a real brake on the expansion of the scale of vaccinations in European countries," Naryshkin said.

Russia has repeatedly accused the West of political intrigues against the vaccine, which has now been approved for use in nearly 70 countries.

However, Russian leaders also said early on in the pandemic that the country would not approve widely used Western vaccines made by companies such as Moderna and BioNTech, saying Russians should instead use vaccines developed in their own country instead.

Naryshkin claimed that the EU was preparing "another smear campaign" accusing Russia of supporting anti-vaccination propaganda abroad.

Naryshkin also denied Western accusations of Russian secret operations abroad, in an interview by the BBC broadcaster.

"These scandals related to poisonings, cyberattacks and hacking, interference in elections attributed to Russia are so abstruse and sometimes even poor," he said, likening them to a "bad detective story."

He also said that the Russian officials are prepared for talks with British external intelligence agency MI6, and had written to agency chief Richard Moore and hoped to hear back from him.

Dmitry Peskov, who is the famous spoke person of Kremlin welcomed the initiative, saying such contact was in the two countries' mutual interest, according to Russian news agency.

Russia's relations with Britain are currently at a low point, as they are with the EU and the United States, with points of contention ranging from the attempted poisonings of dissidents and former spies, to allegations of election interference and the annexation of Crimea, among other issues.