Another South Korean leader questioned in corruption probe

2018 shows former South Korean presidents who faced prosecution investigations over corruption and other charges Roh Tae-woo Chun Doo-hwan Roh Moo-hyun and Park Geun-hye

2018 shows former South Korean presidents who faced prosecution investigations over corruption and other charges Roh Tae-woo Chun Doo-hwan Roh Moo-hyun and Park Geun-hye

He became the latest former South Korean president to be investigated by prosecutors over corruption.

Former President Lee Myung-bak showed up for questioning at 9:22 a.m. on Wednesday at the Seoul Central District Prosecutors' Office in Seocho-dong, southern Seoul. "I am sincerely sorry to the people who supported me and who are going through hard times because of me".

"As a former president, I have many things I want to say, but I promised to myself that I must save my breath", he said. "But I hope this will be the last time in history that this happens".

He was to be interrogated by three prosecutors and Yonhap news agency said the questioning - which will be videotaped - was expected to last around 20 hours, with prosecutors having prepared around 120 pages of questions relating to some 20 alleged offences.

Two of the ex-president's former aides have been arrested and the homes and offices of his brothers raided.

President Moon, Blue House aides and prosecutors have flatly rejected the claim. Park Geun-hye, Lee's successor, was ousted from office previous year, standing trial on charges of bribery and abuse of power.

Lee's own predecessor, the liberal Roh Moo-hyun, committed suicide by jumping off a cliff after being questioned over corruption allegations in 2009.