Presidential spokesman Yoon Chang-jung has been sacked for being involved in an unspecified sexual act while accompanying President Park Geun-hye on her trip to the United States.
Senior presidential secretary for public relations Lee Nam-ki told reporters in Los Angeles on Thursday that Park dismissed Yoon for behavior unbefitting a high-ranking government official and damaging the country's reputation.
Yoon traveled back to Seoul alone on Wednesday.
Korean press reports said Yoon is accused of sexually harassing a female intern at the Korean Embassy in Washington who was meant to look after him during his stay there.
According to a document filed with the District of Columbia Metropolitan Police Department, he is suspected of grabbing the victim's "buttocks without her permission."