Columbia Says a Third of Arrests at Hamilton Hall Were Outsiders

Thirteen of the 44 people who occupied and barricaded themselves inside Columbia University’s Hamilton Hall had no affiliation with the institution, the school said Thursday.

The activists, whose demands include divestment from Israel and an end to academic ties with the country, also included 23 undergraduate and graduate students, six students from affiliated schools and two Columbia employees. Earlier Thursday, New York City Mayor Eric Adams said outsiders accounted for a little less than a third of the 112 people arrested in a crackdown that occurred at Columbia on Tuesday evening.

The number of outsiders was higher during a separate ...