A mass stabbing during a fight near a university campus in Boston, Massachusetts emerged as well.
Police said two suspects were at large after six people were stabbed in the early hours of Sunday morning on Tremont Street in the Theatre District, just moments away from Emerson College, an arts school.
One is in a critical condition and is in surgery, Boston Police Superintendent Bernard O'Rourke said.
The area has a large number of bars and clubs which close at 2am - 15 minutes before the stabbings, the Boston Globe said. More to come.