Reports from French Polynesia say investigators are searching the Tahiti home of the veteran politician Gaston Flosse's estranged wife, Tonita.
Tahitipresse says the search is being conducted by French finance police officers who arrived in Tahiti last week.
No details of the purpose of the search have been given.
This comes a day after Gaston Flosse was questioned by investigative judges in connection with the OPT corruption probe.
He has been charged as has been his partner, Pascale Haiti, who has also been briefly jailed as part of the investigation.