- Police clear protestors from Columbia’s Hamilton Hall after college seeks help The Associated Press
- NYPD officers enter building occupied by Columbia students: Live updates CNN
- Police Enter Columbia University Campus, Begin Breaking Up Pro-Palestinian Demonstrations The Wall Street Journal
- Columbia University protest photos: Police break up protest at Hamilton Hall Yahoo! Voices
- Columbia Asks N.Y.P.D. to Stay on Campus Through Middle of May The New York Times
Read from Source