Barron Trump was expected to return to New York University's Greenwich Village campus on Tuesday, Sept. 2, to begin his second year of studies at the Stern School of Business — but he never showed up.

According to multiple campus security officers, the 19-year-old son of President Donald Trump and first lady Melania Trump has not appeared on NYU's main campus since classes resumed for the fall semester.

"From what I was told," one officer tells PEOPLE, "he's doing a semester at another NYU campus."

Officials declined to share more details about which campus he may have transferred to, citing privacy concerns, though NYU is a global network with several other locations domestic and abroad. Other degree-granting campuses are located in Downtown Brooklyn, Abu Dhabi and Shanghai, and t

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