South Korean graft investigators say they won't be able to question president Park

SEOUL (Reuters) - The South Korean special prosecutor's office said on Monday it will not be able to question President Park Geun-hye in person as part of its investigation into an influence-peddling scandal that threatens to topple Park. Prosecution spokesman Lee Kyu-chul said it was regrettable prosecutors would not be able to question her in person. He said Park's office had refused a demand by prosecutors for a video or audio recording of any questioning. Final decisions on indictments for all suspects embroiled in the scandal, including executives from Samsung Group [SARG.UL], South Korea's largest conglomerate, would be made by Tuesday. (Reporting by Ju-min Park and Se Young Lee; Editing by Paul Tait)