New Delhi, July 4 -- An Indian-origin man, Ishaan Sharma, 21, of Newark, has been arrested for allegedly attacking a fellow passenger during a Frontier Airlines flight from Philadelphia to Miami on June 30.

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A video of the incident, which has since gone viral, shows Sharma and another passenger, Keanu Evans, engaged in a physical altercation, with both men appearing to grab each other by the neck as fellow travellers tried to intervene.

According to Evans, the attack was unprovoked and occurred when Sharma allegedly approached him and grabbed his neck while returning to his seat. Authorities are investigating the incident,...