SHANGHAI (Reuters) - The chairman of China's Hanlong Mining, which is bidding for Australia's Sundance Resources Ltd
Liu Han was detained this week along with family members, according to local media reports. The official Xinhua news agency, quoting police sources, said on Saturday he was being investigated for possibly shielding evidence, among other "serious" criminal offences.
Sundance said on Wednesday it was not confident Hanlong would meet a deadline to prove financing for its $1.4 billion takeover bid after Han's reported detention.
Liu's younger brother, Liu Yong, is being investigated in relation to a triple homicide in 2009, according to local media reports. He was recently arrested by the police, Xinhua said.
Officials at Hanlong could not be reached for comment.
Sundance has threatened to walk away from the long-delayed deal if Hanlong misses any further milestones and is in talks with other potential partners to develop its roughly $5 billion Mbalam iron ore project on the border of Cameroon and the Republic of Congo.
Hanlong launched its offer for Sundance in October 2011 but last year cut its offer price by more than a fifth to A$0.45 per share after Chinese regulators raised concerns about the cost following a slide in iron ore prices.
China had wanted to develop its own iron ore mines to help break the grip of mega miners Vale
(This story was refiled to fix typographical errors to "arrest" and "suspicion" in first paragraph)
(Reporting by Kazunori Takada and Steven Bian; Editing by Ron Popeski and Paul Tait)