SEOUL, Sept. 5 (Yonhap) -- Three male students from South Korea's prestigious medical college will be expelled for sexually harassing their female colleague, school officials said Monday.

The school's decision came after the three unidentified students at the medical college of Korea University had been indicted on charges of molesting their female colleague while on a school trip to Gapyeong, east of Seoul, in May.

Students facing expulsion, the strongest disciplinary punishment under the school's regulations, will not be allowed to apply for re-admission, according to the school.

"Thorough discussions led us to decide that the strongest punishment is inevitable for the troubled students,