Jan 11 (Reuters) - Chinese grain producer YanGuFang International Group said on Wednesday that the company's Chief Executive, Junguo He, and Chief Financial Officer Kui Shi have been detained by the Shanghai police.

The company has not received any official notice of the investigation against the executives or the reason for their detainment, it said in a statement, adding that Ya Zhang and Yang Sui were appointed as the interim CEO and interim CFO, respectively. (Reporting by Chandni Shah in Bengaluru; Editing by Muralikumar Anantharaman)