SEOUL, Oct 30 (Reuters) - Young people flocking to Seoul's popular Itaewon district on Saturday for the first virtually unrestricted Halloween festivities in three years instead found themselves caught up in a deadly crush that killed at least 151 people. On Friday night, a Reuters witness saw crowds in the area packed toe-to-toe at a Halloween street fair with booths for face-painting and selling candy and costumes. But social media posts showed nightclubs and bars advertising Halloween events and promotions, including collaborations at some of the hottest clubs for special performances. Just before 10:20 p.m. (1320 GMT), chaos erupted, with police at times struggling to control the crowds, witnesses said. Social media footage showed some people trying to scale the sides of the buildings to escape the increasing pressure, as others shouted, cried, or cursed.

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