A 19-year-old man has been arrested in Kalamboli Sector 2, Navi Mumbai, for allegedly molesting a teenage girl, the police said on Saturday.

When the 15-year-old girl raised an alarm, some people caught hold of the accused, whose identity has not been revealed, and a mob thrashed him before handing him over to police. The video of the mob beating the accused went viral on Friday night, PTI reported.