According to police, Margarito Morales, 35, of Riverhead, was arrested on charges of DWI and several other vehicle and traffic violations about 1:45 a.m. after he was caught driving drunk on Lake Avenue in Riverside.
James Bennett, 25, of Flanders, was charged with DWI and aggravated unlicensed operation of a motor vehicle in the first degree, a felony. Bennett was arrested shortly after 5:15 a.m. on Flanders Road in Flanders.
On Monday, East Hampton resident Francisco Moctezuma, 47, was arrested on a DWI charge after being pulled over on Flanders Road in Flanders just before 5 a.m.
Police said all three were arraigned in Southampton Town Justice Court.
Correction: An earlier version of this article stated that all three arrests were on Monday morning.