Democratic presidential nominee Hillary Clinton walks to greet people on the street as she leaves a fundraiser in Piedmont, Calif., on Aug. 23. (Carolyn Kaster/AP)

Hillary Clinton on Saturday received her first national intelligence briefing since becoming the Democratic presidential nominee, during a session that an aide said lasted about two hours at an FBI field office not far from her home in Chappaqua, N.Y.

Republican nominee Donald Trump received a similar classified briefing on foreign affairs and homeland security about a week and a half ago at an FBI field office in Manhattan. The briefings have become a tradition for major-party candidates following their official nominations, with the aim of providing a smoother transition to the Oval Office for whichever candidate prevails.

Clinton, the former secretary of state, arrived at the FBI field office in White Plains, N.Y., at 9 a.m. Saturday and met, unaccompanied by aides, with several officials from the Office of the Director of National Intelligence, according to a Clinton aide.

By contrast, Trump was joined by close associates, New Jersey Gov. Chris Christie (R) and retired Lt. Gen. Michael T. Flynn, when he got his first briefing.

Clinton’s meeting came ahead of a trip to the Hamptons, a summer destination for affluent New York City residents, where she has multiple fundraisers planned in coming days.