TOKYO (AP) — Nissan former chairman Carlos Ghosn, arrested in Japan on suspicion of underreporting his income, is holding up well while in detention and asked for thriller books, according to the Brazilian consul general, one of the few allowed to visit.

Joao de Mendonca Lima Neto told The Associated Press Wednesday that Ghosn was "a strong man" ready for what he called a proper fight and didn't look worried.

Mendonca declined comment on the specifics of the allegations.

Ghosn, who headed the Renault-Nissan-Mitsubishi Motors auto alliance, was arrested last month on suspicion he underreported his income by $44 million over five years.

Ghosn holds French, Lebanese and Brazilian citizenship. Representatives of those nations, as well as attorneys, can visit suspects in detention in Japan.