PUTRAJAYA, July 6 — Film producer Riza Aziz arrived this morning at the Malaysian Anti-Corruption Commission (MACC) headquarters here for his fourth straight day of interviews over the 1MDB corruption scandal.

The 48-year-old son of Datin Seri Rosmah Mansor, the wife of former prime minister Datuk Seri Najib Razak, was seen arriving in a black Audi at 9.48am.

After four hours, he left the compound at 1.10pm for lunch and Friday prayers, and was scheduled to return again around 2.30pm.

He came back 11 minutes late.

Riza eventually departed from the MACC headquarters at 7.35pm, after almost 10 hours at the compound.

Attempts made by the assembled press to get him to comment were unsuccessful as Riza, seated behind the driver and clad in a light yellow Polo shirt, ignored questions directed at him while his vehicle waited at the traffic junction.

Riza’s production firm, Red Granite Pictures, was implicated by the US Department of Justice as recipients of funds alleged stolen from 1MDB.

The funds were allegedly used in the production of the movie Wolf of Wall Street.

Najib was charged on Wednesday with three counts of criminal breach of trust and one count of power abuse in relation to RM42 million from a former 1MDB unit.