A FORMER KGB spy chief suspected of helping Brit spook Christopher Steele compile the Trump 'dirty dossier' has been found dead in mysterious circumstances.

Oleg Erovinkin, described as a key source behind the widely discredited document, was found dead in the back of his car in Moscow on Boxing Day.

4 Oleg Erovinkin, suspected of being a key source in the compiling discredited dossier, has been found dead

4 Former MI6 spook Christopher Steele, uncovered as the author of the dossier, is still in hiding

Media reports in Russia suggest his death was the result of foul play, reports the Telegraph.

A former general in the intelligence agency the KBG and its successor the FSB, Erovinkin was reportedly a key aide to former deputy prime minister Igor Sechin.

Erovinkin acted as a ‘go-between’ for Russian Presdident Vladimir Putin and Sechin who is now head of the state-owned oil company Rosneft, it has been reported.

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Sechin was named several times in the dossier which contained lurid and unverified allegations against President Donald Trump.

Former MI6 spy Steele reportedly claimed that he had a source close to Sechin in an intelligence report from July last year.

Erovinkin’s death has prompted speculation that it was linked to the sensational document, reports the Telegraph.

Russian news agency RIA Novosti news agency reports his body was “found in a black Lexus... a large-scale investigation has been commenced in the area.

“Erovinkin’s body was sent to the FSB morgue”.

4 President Trump slammed the dossier when it was released earlier this month Credit: EPA

4 Erovinkin was allegedly acted as a link between oil boss Igor Sechin and President Vladimir Putin Credit: Reuters

While no cause of death has been confirmed, some reports have claimed he died as a result of a heart attack.

Christo Grozev, an expert in Russian espionage, writes in his blog that he believes Erovinkin was the key source in Steele’s dossier.

He also claims he has “no doubt” that Putin would have had the document on his desk at the time of Erovinkin’s death.

Steele, 52, is still in hiding after being revealed as the author of the explosive dossier which was published in full by Buzzfeed earlier this month.

The former spook was reportedly hired by a US political research firm to investigate Trump on behalf of ‘unidentified Republicans’ who wanted to derail his White House bid.

He then allegedly wrote a 35-page report consisting of memos compiled before and after the November 8 election – which was later partly funded by Democrats as well as the anti-Trump Republicans.

A furious Trump let rip at his first press conference since his shock election victory, slamming the dossier as “fake”.

Father-of-four Steele reportedly fled his £1.4million Surrey mansion 'fearing for his life' after giving his pet cat to his neighbour.

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