Representatives for the Ghosn family did not immediately respond to a request for comment.
She was banned from meeting her husband after he eas released on bail due to fears it might jeopardise the case.
Japan is probing how Ghosn was able to slip out and Turkey has also detained seven individuals over Ghosn's transit through Istanbul, where he changed private jets on his way to Lebanon. Ghosn has repeatedly denied the charges, claiming that his arrest was part of a plot to remove him from the empire he built. "There is no way to justify this act", they said.
The foreign ministry said the Japanese ambassador planned to meet with Lebanese President Michel Aoun later on Tuesday (local time).
"It is believed that he used some wrongful methods to illegally leave the country", the country's Justice Minister, Masako Mori, said at a press conference on Monday. Japan does not have an extradition treaty with Lebanon but Ms Mori left open the possibility Japan could seek Mr Ghosn's return. Chief Cabinet Secretary Yoshihide Suga said the situation must be handled carefully.
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Labour leadership hopeful and local MP Keir Starmer added his voice too, tweeting: "Awful news in Camden tonight". No one was reported as being hurt in the fire. 'Firefighters are working hard to save the rest of the building.
Ghosn became an worldwide fugitive after he issued a statement on December 31 announcing he was in Lebanon.
Ghosn is scheduled to hold a news conference on Wednesday, his first such appearance since his arrest in November 2018 and his dramatic flight to Lebanon, his childhood home.
Nissan has described Carlos Ghosn's escape from Japan as "extremely regrettable" and vowed to pursue legal action against its former chairman over his "serious misconduct". His lawyers in Japan said they knew nothing about the escape and felt betrayed by his action.
The two flew into Kansai International Airport in Osaka in the morning on a private jet from Dubai, checked in at a hotel nearby with a large box and boarded a bullet train from Shin-Osaka station to Shinagawa station in Tokyo, NHK said.
The company called for those who facilitated Ghosn's flight to be fully prosecuted.
Other charges of breach of trust involve Nissan money allegedly diverted to Ghosn for personal gain, including payments in Oman and Saudi Arabia.
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(AP Photo/Maya Alleruzzo). A traditional door knocker on the front door of the house of ex-Nissan chief Carlos Ghosn in Beirut, Lebanon, Saturday, Jan. 4, 2020.
It should be noted that the Lebanese judiciary can interrogate Ghosn without arresting him, because an arrest can only take place in case of charges of a crime or drugs, which does not apply to Ghosn, according to judicial sources who spoke to Asharq Al-Awsat.
In a statement last week, Ghosn claimed he fled the "injustice and political persecution" of Japan's legal system. French investigations were also ongoing.
She also declined to say whether Japan contacted the USA or France for help, and how they might be working together.
It was the latest twist in a saga that has gripped the business world and his escape from Japan has left authorities there red-faced and scrambling to defend their justice system from fierce worldwide criticism. Mori said each nation's system has its own way of making arrests and granting bail. Ghosn's successor Hiroto Saikawa also resigned past year amid financial misconduct allegations related to questionable income.
Prosecutors demanded the hefty bail for Ghosn based on a calculation that his assets exceeded 10 billion yen ($92 million).
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Qassem Soleimani was killed on Friday in a USA drone strike on his convoy at Baghdad airport, an attack that carried U.S. Targeting cultural sites with military action is considered a war crime under worldwide law, including a U.N.