TOKYO (Reuters) - Ousted Nissan boss Carlos Ghosn left his Tokyo residence after a private security firm hired by Nissan Motor Co stopped monitoring him, three sources familiar with the matter told Reuters on Saturday.

Ghosn has become an international fugitive after he revealed on Tuesday he had fled to Lebanon to escape what he called a “rigged” justice system in Japan, where he faces charges relating to alleged financial crimes.

Nissan had hired a private security company to watch Ghosn, who was on bail and awaiting trial, to check whether he met any people involved in the case, the three sources said.

But his lawyers warned the security company to stop watching him as it would be a violation of his human rights, and Ghosn was planning to file a complaint against the company, the sources said.

The security company stopped its surveillance by Dec. 29, the sources said.

One of his lawyers, Junichiro Hironaka, told reporters in November that they were considering steps to prevent people from stalking Ghosn.

A Nissan spokesperson declined to comment.

Japanese public broadcaster NHK, citing investigative sources, said a surveillance camera placed by the authorities in Ghosn’s home showed him leaving alone around noon on Sunday, and did not show him returning.

It is unclear how Ghosn, who holds French, Brazilian and Lebanese citizenship, was able to orchestrate his departure from Japan. He entered Lebanon legally on a French passport, one source has told Reuters.

A Turkish private jet operator said on Friday that Ghosn used two of its planes illegally in his escape from Japan, with an employee falsifying lease records to exclude his name from the documents.

Ghosn has said he will speak publicly about his escape on Jan. 8.

Takashi Takano, who is also one of Ghosn’s lawyers, wrote in his blog on Saturday that he felt infuriated and betrayed when he found out about Ghosn’s escape from Japan but that he felt some understanding.

“I was betrayed. But it is not Carlos Ghosn who betrayed me,” he wrote in his blog.

FILE PHOTO: Carlos Ghosn, President and Chief Executive Officer of Renault, attends the company's annual shareholders meeting in La Defense business district, near Paris, April 29, 2008. French carmaker Renault sticks to its target of a 2008 operating profit margin of 4.5 percent, despite a weaker dollar and pound and a faster than forecast rise in raw material prices, Ghosn told the annual general meeting. REUTERS/Benoit Tessier/File Photo

Takano said Ghosn was not allowed to communicate with his wife Carole without permission and the ex-Nissan boss was also concerned about his chances of getting a fair trial.

On Dec. 24, Ghosn and his wife held a one-hour video call, which required a lawyer’s presence, and they talked about their children, relatives and friends, Takano wrote. Takano was present during the video call.

Few people would have been able to escape as Ghosn did, but if they had the means and contacts, they certainly might try or at least consider trying, Takano wrote.

Ghosn was first arrested in Tokyo in November 2018, shortly after his private jet touched down at the airport. He faces four charges - which he denies - including hiding income and enriching himself through payments to dealerships in the Middle East.