A thus-far unidentified off-duty NYPD officer has been arrested following the shooting of a motorist in Westchester early this morning. Details about the arrest are still emerging, but NYPD Commissioner Bill Bratton addressed the incident during a press conference this morning, telling reporters, "I believe at this time that there’s a potential charge, again you’d need to confirm with the Pelham PD, of driving while under the influence, relative to our off-duty member."

Bratton was referring to the Village of Pelham in Westchester, where police are investigating the shooting along with the NYPD Internal Affairs Bureau. Law enforcement sources tell the Journal News that the shooting was unprovoked; sources say it occurred shortly after midnight near the Pelham-New Rochelle border when the officer fired into a car with two occupants. Another source tells the Times the off-duty officer "fired a gun at the back windshield of another car, striking a man in his 40s several times."

The unidentified victim was driven to a nearby hospital with a critical gunshot wound, and this is where police first learned about the shooting. A short time later the officer, who works in the 46th Precinct in the Bronx, was pulled over and arrested. Investigators believe the officer had been drinking, but the motive remains opaque.

If the officer is charged with driving under the influence, this would make the second alcohol-related incident for the NYPD in a week. Previously on drunky cops, 57-year-old Jay Poggi, a department veteran of 31 years, allegedly shot his partner in the hand after the two spent the day drinking at a bar in Far Rockaway. "I, personally, am very disturbed about the number of incidents in recent weeks that are part of a longer-term problem of inappropriate use of alcohol by members of our department," Commissioner Bratton said at today's press conference.