A Roosevelt Island tipster reported at about 7 AM this morning:

My husband was just at the subway and said the following: 5 police cars near subway. About 12 cops around one guy, cuffing him, near bench outside subway entrance.

According to the Roosevelt Island Twitterverse: In response to my inquiry, a NYPD spokesperson replied:

On Monday, September 18, 2017 at approximately 0614 hours there is a report for menacing. At the 169 Street Subway along the F line a 36 year-old male had a verbal dispute with a 27 year-old male suspect over seating inside of a subway car. The suspect pointed a semiautomatic handgun at the victim. The suspect was arrested at the Roosevelt Island Subway Station on board a southbound F train. The suspect was taken into custody and an unloaded firearm was recovered.

Charges:

Menacing

Criminal Possession of a Weapon

The Roosevelt Island Public Safety Department Daily Report described the incident as follows:

9/18/17 0632 400 Main St. Suspicious Activity PSD/NYPD responded. NYPD arrested subject.

Roosevelt Islander