The founder of Chinese investment giant Fosun International has appeared in public for the first time since being detained by police last week.

Guo Guangchang, who many consider to be the Chinese Warren Buffett, made an appearance at Fosun's annual meeting in Shanghai. He was first reported missing on Friday after not being seen for around 48 hours.

But Fosun said Mr Guo was assisting police with an investigation. And president Wang Qunbin revealed that the probe concerns Mr Guo's personal affairs, not relating to the business.

Reports by Reuters claim that he received a standing ovation upon taking the stage at Fosun's general meeting.

Guo Guangchang is not the first company executive to have gone missing for a short period over the past few months. As part of a crackdown on the country's financial sector, several executives have not been seen for days as they face police questioning.