After a few photos surfaced & rumors circulated of A$AP Rocky being arrested, TMZ reports that NYPD took Rocky into custody and has been booked for attempted robbery.
The incident occurred after a dispute in downtown Mahattan, when two fans started snapping pics of the argument out on the street. A$AP Rocky and another member of the A$AP Mob quickly took their attention off the dispute and focused it on the folks snapping pics, as it got confrontational and the two victims suffered bruises and cuts by the Mob. One even needed medical attention and was taken to the hospital.
Details still developing.
[Source]