Japan has asked the US to extradite a former special forces soldier and his son for allegedly helping ex-Nissan boss Carlos Ghosn flee Japan last year.

Ex-Green Beret Michael Taylor and his son Peter were held in Massachusetts in May, several months after Japan had issued warrants for their arrest.

The US authorities confirmed a formal extradition request was submitted.

Mr Ghosn, who was detained in Japan on financial misconduct charges in 2018, made a dramatic escape last year.

The former Nissan boss denies the charges against him.

Despite being under house arrest and monitored 24 hours a day, on 29 December he managed to fly to the Lebanese capital Beirut via Turkey.

Details of the Taylors’ alleged involvement in the escape are unclear. But Japanese prosecutors have said the two were in Japan at the time and helped Mr Ghosn evade security checks as he left.

In May, prosecutors in Turkey charged seven people over the escape. The suspects – four pilots, two flight attendants, and an airline executive – are also accused of helping Mr Ghosn flee.

They go on trial in Istanbul on Friday, with Turkish prosecutors seeking up to eight years in jail for the four pilots and the airline executive.

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Full details of the escape have never been fully explained. Mr Ghosn, who holds Brazilian, French and Lebanese nationalities, ran Renault and Nissan as part of a three-way car alliance.

He is accused of misreporting his compensation package, but has insisted he can never get a fair hearing in Japan.

Since his arrival in Lebanon, he has told reporters he was a “hostage” in Japan, where he was left with a choice between dying there or running.