South Korea's Yonhap News Agency said Park departed from the presidential office at around 1000 GMT to return to her private residence in southern Seoul, where hundreds of her supporters have been protesting her ouster.
Live televised footage showed a black vehicle driving away from the Blue House escorted by dozens of police motorbikes.
"President Park Geun-Hye has just left the Blue House and headed for her private home. No statement was released on her departure," said presidential spokesman Kim Dong-Jo.
Park was found to have broken the law by allowing her friend Choi Soon-Sil to meddle in state affairs, and breached rules on public servants' activities.
The ruling, which also removed her presidential immunity to criminal indictment, triggered ongoing street protests that have sparked alarm as the country prepares for polls to elect a new president.
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