The Chinese military's newspaper has warned officials against enlisting family members in corrupt practices, amid heightening speculation a former top figure in the People's Liberation Army has been caught up in the anti-graft drive. A commentary in the PLA Daily yesterday said officials should not abuse their power to fulfil their family's needs, and urged them to teach their children proper moral values. "It is reasonable for cadres and leaders to take care of their families and help their families, but family needs should not override moral principles," the commentary said. It warned that those who violated moral principles would "lose all their political standing and reputation, and their family fortune". It said that many family members of those officials already caught up in the anti-corruption drive had also been implicated in corrupt practices. It referred to the cases of Liu Tienan, the former head of the mainland energy regulator, and Su Rong, the former Chinese People's Political Consultative Conference vice-chairman. Their family members had received bribes in exchange for favours, said the article. Su's case had involved his whole family. The commentary came after overseas websites said former vice-chairman of the Central Military Commission Guo Boxiong and his wife had been arrested for corruption on Friday. In March, the PLA announced investigations into 14 senior officials, including Guo's son Guo Zhenggang. Military prosecutors opened the investigation into Guo Zhenggang, who was the deputy political commissar of the Zhejiang Provincial Military Command, in February. Mainland media reported that his wife Wu Fangfang was linked to the developer of an unfinished building in a military-owned area in Hangzhou . Caixin said yesterday that Major General Dong Mingxiang, former head of the Joint Logistics Department of the Beijing Military Area Command, was taken away for investigation last month.