Prosecutors on Sunday questioned South Korea's parliamentary speaker over a bribery scandal which forced him to stand down and rocked the ruling conservative party in a key election year.
Television footage showed the prosecutors entering Park Hee-Tae's Seoul residence. Yonhap news agency, citing unnamed prosecutors, reported that he was grilled for more than six hours.
Park or his aides are alleged to have offered cash in envelopes to lawmakers of the Grand National Party before a vote - which Park won - to select a new party chief in 2008. The affair was exposed last month by a GNP lawmaker who claimed he had received an envelope stuffed with three million won ($2,865) from an aide to the speaker, which he returned. Park, who quit the party post before becoming speaker in 2010, resigned earlier this month but did not admit personal wrongdoing. He holds the position until his successor is named.