What happened near Yonsei University in Seoul involving a naked man with a black mask?

An unidentified man allegedly sexually harassed people near the campus while naked and wearing a black mask. Police said he groped a student near a dormitory at 10:10 p.m. the previous day and then fled.

Why do police think the same suspect may be linked to earlier incidents near Yonsei University?

Police said they suspect the man may also have been involved in a sexual harassment incident near the campus in June and a report last month of a man hiding in bushes nearby. In those cases, the suspect was also reportedly naked and wearing a mask.

How are police trying to identify the suspect near Yonsei University?

Police are analyzing CCTV footage from areas surrounding the scenes to track him down. They said the investigation is taking some time because of the procedures that have to be followed.

Police tracking down man for sexual harassment near Seoul university

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Summary

Police are tracking down an unidentified man in Seoul who allegedly sexually harassed people near Yonsei University while naked and wearing a black mask. He reportedly groped a student near a dormitory at 10:10 p.m. the previous day and fled. Police also suspect he may be tied to a June incident and a report last month near the campus. Investigators are reviewing CCTV footage while Yonsei University discusses response measures.

Key Facts

The suspect allegedly groped a student near a dormitory at Yonsei University at 10:10 p.m. the previous day before fleeing.
Police suspect the same man may have been behind a sexual harassment incident near the campus in June and a report last month of a man hiding in bushes near the campus.
In both earlier cases, the suspects were reportedly naked and wearing a mask.
Police said they are analyzing CCTV footage from areas around the scenes, but the process is taking time because of investigative procedures.

By Yonhap

Published Aug 20, 2026 8:31 pm KST

Yonsei University dormitory in Seoul / Newsis

Police are tracking down an unidentified man who reportedly sexually harassed people near a university in Seoul while naked and wearing a black mask, officials said Thursday.

The suspect, wearing no clothes and covering his face with a black mask, allegedly groped a student near a dormitory at Yonsei University at 10:10 p.m. the previous day before fleeing the scene, according to police.

Police also suspect the man may have been behind a sexual harassment incident near the campus in June, as well as a report last month of a man hiding in bushes near the campus.

In both cases, the suspects were reportedly naked and wearing a mask.

Police suspect the same person is involved in all three cases.

Police said they are analyzing CCTV footage from areas surrounding the scenes to track down the suspect, but the process is taking some time due to the necessary investigative procedures.

"We are discussing measures as a student was subjected to sexual harassment," a Yonsei University official said.

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