TOKYO — Carlos Ghosn, one of the world’s most powerful car industry leaders, will be detained for 10 more days as prosecutors investigate accusations of financial misconduct against him, and French and Japanese officials prepare to meet over the case.

Japanese prosecutors arrested Mr. Ghosn, who oversaw an alliance between Nissan, Renault and Mitsubishi, Monday on his corporate jet shortly after it landed at Tokyo’s Haneda airport. He has yet to be charged with a crime.

Mr. Ghosn’s detention could last several more weeks. Under Japanese law, prosecutors can hold suspects for up to 23 days without filing charges. While he is held, Mr. Ghosn is likely to live in spare conditions. Even a request for extra blankets would have to go through lawyers.

“There will be no special treatment” for Mr. Ghosn, said Tsutomu Nakamura, a former prosecutor in Japan who is now a private defense lawyer with no role in the case. “He will be treated in the same way as a burglar.”