Czech archive keepers have confirmed that Jeremy Corbyn did not collaborate with a spy | Leon Neal/Getty Images Jeremy Corbyn never knowingly met communist spy, says Czech agency Secret service archives show a meeting took place, but Labour leader considered it to be with a diplomat.

Jeremy Corbyn was not a collaborator with the communist-era secret service in Czechoslovakia, Czech media reported Friday, rebuking a story in the British press claiming that he met with a spy from that country in London.

According to the Sun on Wednesday, the Labour leader was "vetted by Czech agents in 1986 and met one spook at least three times — twice in the [House of] Commons." Corbyn allegedly warned the spy of "a clampdown by British intelligence." The paper claimed that the Czechs even had a codeword for the then Labour backbench MP — COB.

The Sun's account was further disputed in Czech press on Friday. New agency ČTK quoted Svetlana Ptáčníková, who heads the Czech Security Forces Archive, which keeps documents from the now defunct Czechoslovak communist secret service (known as the StB). She said although Corbyn did meet an StB officer — referred to as Jan Dymic in the archives — the Labour leader considered him a diplomat.

"Mr. Corbyn was neither registered [by the StB] as a collaborator, nor does this [his alleged collaboration] stem from archive documents," Ptacnikova said.

The Czech archive keepers have found signs that the StB tried to prevent Corbyn from discovering the real identity of the Czechoslovak official he was meeting, Ptacnikova said.

Jan Dymic was a cover name, she said, which was not unusual, adding that intelligence officers officially worked at Czechoslovak diplomatic and trade missions abroad. It is believed that Dymic was actually Ján Sarkocy, the third secretary of the Czechoslovak foreign ministry, in charge of "peace movement."

He was probably meeting Corbyn in his capacity as a diplomat, Ptáčníková told ČTK. He was expelled from Britain in 1989.

In response, a spokesperson for Corbyn said: “This confirms these claims are entirely false and a ridiculous smear.”

This story has been updated with additional details and to clarify the original source of media report in the Czech Republic.