* Ghosn to be detained for another 10 days
* Lawyer's appeal against detention rejected
* Ghosn says he is innocent of 'groundless charges' (Adds court rejection of defence appeal)
By Maki Shiraki and Naomi Tajitsu
TOKYO, April 5 (Reuters) - A Tokyo court approved on Friday a request by prosecutors to detain Carlos Ghosn for 10 days for further questioning, rejecting an appeal by the ousted Nissan boss' lawyer to free him as he fights charges against financial misconduct.
The Tokyo District Court said it had approved the request by prosecutors to detain Ghosn until April 14. The decision was widely expected after prosecutors arrested Ghosn for the fourth time at his Tokyo apartment on Thursday.
Prosecutors re-arrested Ghosn on suspicion the former Nissan Motor and Renault SA boss had tried to enrich himself to the tune of $5 million at Nissan's expense.
In a statement on Thursday, Ghosn said he was innocent of the "groundless charges and accusations" against him. The once-feted executive, who has said he is the victim of a boardroom coup, also called the latest arrest an attempt to silence him.
The Ghosn scandal has rocked the global auto industry and strained ties between Nissan and its global alliance partner Renault.
It has also shone a harsh light on Japan's judicial system.
Thursday's arrest came 30 days after Ghosn was released on $9 million bail from a Tokyo detention centre. Legal experts have characterised the move as rare for someone already released on bail.
Under Japanese law, prosecutors can seek an extension of another 10 days of detention before they must either bring formal charges against suspects or let them go. (Additional reporting by Kiyoshi Takenaka and Chang-Ran Kim; Writing by David Dolan; Editing by Muralikumar Anantharaman, Himani Sarkar and Mark Potter)