Palestinian student demonstrators occupied a building at Barnard College’s Manhattan campus Wednesday, clashing with staff and sending one employee to the hospital, the school said. The demonstration,

A pro-Palestinian sit-in at Barnard College turned violent, prompting the Columbia affiliate to lock down campus.

Barnard College officials say pro-Palestinian protesters wearing kaffiyeh scarves and masks pushed their way into Milbank Hall, which houses the offices of the dean, and assaulted a school employee.