BEIJING (REUTERS) - Prosecutors are investigating two top officials from China's National Energy Administration on suspicion of taking bribes, state media said on Wednesday, the latest senior administrators to face questioning in a sweeping anti-corruption drive.

The two officials are Mr Hao Weiping, director of the administration's nuclear power departmen, and Mr Wei Pengyuan, deputy director of the coal department, the official Xinhua news agency said.

Last month, Caixin magazine reported that Mr Hao and his wife were detained as she prepared to leave the country from Beijing airport.

Since Mr Xi Jinping assumed the presidency in March last year, China has launched a series of probes into the energy sector as part of a broader campaign to clamp down on official graft in a government widely seen as rife with corruption.

The State Grid Corp of China said this month that it was the focus of a government audit, after a magazine report that one of its most senior executives was under investigation.