A Massachusetts man faces charges of drunken driving and carrying a gun without a license after being pulled over in Manchester, N.H., New Hampshire State Police said. A trooper patrolling Interstate 93 observed a pickup truck driven by Nathan Dellecese, 23, of Fairhaven operating erratically just after midnight on Monday, State Police said. Dellecese showed signs of alcohol impairment, prompting the trooper to remove him from the truck, police said. During a patdown, the trooper discovered a loaded .380-caliber handgun in Dellecese’s waistband and arrested him, police said. Dellecese will be arraigned in Manchester Circuit Court on April 22.