The Turkish army on Wednesday released a series of audio recordings of apparent warnings issued to a Russian jet before it was downed near the Syrian border – even as a rescued Russian pilot from the jet claimed Turkey shot with no warning.

“This is Turkish Air Force speaking on guard. You are approaching Turkish airspace. Change your heading south immediately,” a voice in one of the recordings can be heard saying in English, repeating the message several times.

The surviving pilot of the Su-24 bomber shot down on Tuesday said earlier that no warning had been given and the aircraft did not violate the Turkish air space.

“There was no warning, not by radio exchange nor visually. There was no contact at all,” said navigator Konstantin Murakhtin, who promised to return to duty, adding: “I have to pay back the debt for my commander.”

However, Turkey insists that it gave 10 warnings in five minutes, in claims the US military has backed.

Turkey says its F-16 jets shot down the Russian plane under its rules of engagement, while Moscow says the act was a “planned provocation.”

The downing has threatened ties between two major rival players in the Syrian war and raised fears it could escalate into a wider geopolitical conflict.

AFP contributed to this report.