A day after mid-day's report on four youths creating ruckus on a Harbour train — carrying out stunts and even robbing a commuter of his mobile phone, all caught in their own video — the Wadala GRP, last night, detained four youths suspected to be those seen in the viral video. Till the time of going to press, officers were verifying that the quartet caught is indeed the one they have been searching.

Earlier in the day, the Railway Protection Force (RPF) had spread the word, and their photos, to nab the culprits. The youths had recorded a video, which had gone viral, of them hanging out of trains and climbing to the roof between Chunabhatti and GTB Nagar stations, and then, snatching the phone of a person standing at GTB Nagar station.