The mayor of South Korean capital Seoul has been reported missing and search operations are under way, according to police.
Officers are looking for Mayor Park Won-soon in Sungbuk neighbourhood, where his mobile phone signal was last detected.
Police said his phone is turned off.
His daughter called police earlier on Thursday and said her father has been unaccounted for.
Yonhap news agency reported Mr Park’s daughter told police her father left “a will-like” message before leaving their home earlier on Thursday.
It said officers, drones and police dogs have been mobilised in the search.
Kim Ji-hyeong, an official from the Seoul Metropolitan Government, confirmed Park did not show up for work on Thursday and cancelled all his schedules, including a meeting with a presidential official at his Seoul City Hall office.