Taiwanese prosecutors say they are questioning the wife and the daughter of jailed former President Chen Shui-bian as part of their corruption investigation of the ex-leader.
The wheelchair-bound former first lady's interview follows Chen's arrest three days ago on graft charges.
A spokesman for the prosecutors, Chen Yun-nan, confirmed that the former president's wife and daughter were questioned on Saturday. The ex-leader's wife was indicted two years ago on charges she embezzled money from a special presidential fund.
In August, Chen acknowledged that Wu had wired $20 million overseas, but she said it came from unused campaign contributions. Taiwanese law permits candidates to retain unused political donations.